Travelling to Vietnam? Read all updated requirements before you book.
Himalaya Phoenix Saigon Hostel
Himalaya Phoenix Saigon Hostel
Himalaya Phoenix Saigon Hostel
Himalaya Phoenix Saigon Hostel
Himalaya Phoenix Saigon Hostel
Himalaya Phoenix Saigon Hostel
Himalaya Phoenix Saigon Hostel

Removed from saved list

8.6

Excellent

335 reviews

335 reviews

See map

9

Exceptional

Location rating score

Exceptional location - Inside city center
Popular neighborhood
Exceptional for walking
Walkable places
Gaya

70 m

Vòng xoay Phù Đổng Thiên Vương

90 m

Zen Plaza

110 m

23/9 Park

150 m

H&D Tailor

160 m

Popular landmarks
Ben Thanh Market

600 m

The Independence Palace

780 m

War Remnants Museum

990 m

Central Post Office

1.2 km

Saigon Notre Dame Cathedral

1.2 km

Closest landmarks
Nu Cuoi Duyen Dental Clinic

120 m

New Saigon Bar

210 m

SahaBook

220 m

Magonn Saigon

230 m

Pham Ngu Lao street (backpack)

230 m

Himalaya Phoenix Saigon Hostel

7/12 Nguyen Trai, Ben Thanh ward, District 1, Ho Chi Minh City, Vietnam, 700000 - See map

Get your trip off to a great start with a stay at this property, which offers free Wi-Fi in all rooms. Strategically situated in District 1, allowing you access and proximity to local attractions and sights. Don't leave before paying a visit to the famous War Remnants Museum. As an added bonus, restaurant is provided on-site to conveniently serve your needs.

Show more

Highlights

Located in heart of Ho Chi Minh City

Check-in [24-hour]

Airport transfer

Excellent breakfast

Inside city center

Facilities

Front desk [24-hour]

Airport transfer

Shuttle service

Free Wi-Fi in all rooms!

Luggage storage

Check-in/out [private]

Room service [24-hour]

Coffee shop

Your dates are popular among travelersUsers are booking a place in Ho Chi Minh City every 10 minutes on Agoda.com
Value for money8.9
Location rating9.0
Nearest airportTan Son Nhat International Airport (SGN)
Distance to airport6.5 km

Rooms available at Himalaya Phoenix Saigon Hostel

Family Room with Balcony
...
  • Room size: 28 m²/301 ft²
  • City view
  • 2 double beds
Enter dates to see prices
Superior Double Room
...
  • Room size: 25 m²/269 ft²
  • City view
  • 1 double bed
Enter dates to see prices
Bed in Female 6-Bed Dormitory Ensuite
...
  • Room size: 28 m²/301 ft²
  • City view
  • 1 single bed
Enter dates to see prices
Bed in Mixed Dormitory Room 6 beds
...
  • Room size: 28 m²/301 ft²
  • City view
  • 1 single bed
Enter dates to see prices
Family Room
...
    Enter dates to see prices
    Family Room with Balcony (2 Double Bed)
    ...
      Enter dates to see prices
      Superior Double or Twin Room
      ...
        Enter dates to see prices
        Bunk Bed in Mixed Dormitory Room (6Adults) (3 Bunk Bed)
        ...
          Enter dates to see prices
          Family Room with Balcony (2 Double Bed)
          ...
            Enter dates to see prices
            Bunk Bed In Mixed Dormitory Room(6Adults)
            ...
              Enter dates to see prices

              Frequently asked questions

              What time is check-in and check-out at Himalaya Phoenix Saigon Hostel?

              Check-in is from 02:00 PM, and check-out is until 12:00 PM. You may request early check-in or late check-out during booking, subject to availability. Guests checking in or out before or after the designated periods may be charged an additional fee. The hostel offers luggage storage to guests for before check-in and after check-out. The front desk is always open, day or night.

              How do I get to Himalaya Phoenix Saigon Hostel?

              Himalaya Phoenix Saigon Hostel is easy to access from the airport. In fact, you can even book your airport transfer in advance for greater peace of mind. Just use the "Let us know what you need" section of the booking page to let the hostel know you want to book a ride, and they will contact you via the Agoda messaging service. A stay at Himalaya Phoenix Saigon Hostel also comes with easy access to the neighborhoods around the hotel through the convenient shuttle service offered at the hostel. If you're looking for an easy way to get around Ho Chi Minh City with private transportation, the hostel can arrange both taxis or car rental.

              What is the smoking policy at Himalaya Phoenix Saigon Hostel?

              Himalaya Phoenix Saigon Hostel does not permit smoking in any of its rooms, but allows smoking in designated areas.

              What restaurants are nearby Himalaya Phoenix Saigon Hostel?

              Himalaya Phoenix Saigon Hostel’s neighborhood is District 1 which includes popular restaurants such as Changi Village, Banh Mi 37 Nguyen Trai and Stone Bowl Restaurant.

              What popular shopping places are close to Himalaya Phoenix Saigon Hostel?

              Located in the District 1 area, Himalaya Phoenix Saigon Hostel is close to great shopping choices like Ben Thanh Market, Benthanh Street Food Market and Vincom Center.

              What are popular attractions near Himalaya Phoenix Saigon Hostel?

              Himalaya Phoenix Saigon Hostel is located in District 1 area, which is famous for attractions such as Central Post Office, The Independence Palace and Saigon Notre Dame Cathedral.

              What popular natural sightseeing spots are close to Himalaya Phoenix Saigon Hostel?

              Himalaya Phoenix Saigon Hostel is located within District 1, which makes it conveniently close to natural sights including Can Gio Mangrove Biosphere Reserve and TransOcean.

              Show more questions
              See map

              Explore the neighborhood

              What people love about Himalaya Phoenix Saigon Hostel

              • 7.2

                Very good

                "As we where walking we saw backpackers inn and continue walking thru, there we saw this hostel, upon arriving the receptionist and i think owner is very welcomi..."

                Nins

                |

                April 22, 2020

              • 10

                Exceptional
                Cleanliness

                "Clean, strategic and safe location even you are travelling alone."

                YongTeng

                |

                January 18, 2020

              • 10

                Exceptional

                "I ll stay here again and best recommended."

                Sopheap

                |

                January 13, 2020

              Property ranking|Compared to 4,355 Ho Chi Minh City properties
              See all rankings
              Value for money score
              8.9/10
              Location score
              9/10
              Service score
              8.8/10
              Cleanliness score
              8.4/10
              Better than
              96
              %
              of Ho Chi Minh City properties
              Better than
              96
              %
              of Ho Chi Minh City properties
              Better than
              94
              %
              of Ho Chi Minh City properties
              Better than
              92
              %
              of Ho Chi Minh City properties
              Overall rating:

              8.6

              Excellent
              335 reviews
              Cleanliness
              8.4
              Facilities
              8.0
              Location
              9.0
              Read all reviews >
              What travelers say they love:
              Overall, very good value for money, excellent location and v...
              John from Philippines
              Solo traveler
              More about Himalaya Phoenix Saigon Hostel

              More about Himalaya Phoenix Saigon Hostel

              Himalaya Phoenix Saigon Hostel

              Himalaya Phoenix Saigon Hostel is the perfect choice for travelers who want to take in the sights and sounds of Ho Chi Minh City. Experience an urban escape in Ho Chi Minh City with a stay at Himalaya Phoenix Saigon Hostel, with its exceptional location right in the city center.
              Himalaya Phoenix Saigon Hostel offers numerous on-site facilities to satisfy even the most discerning guest. Never be out of touch with your contacts, with free Wi-Fi offered throughout your stay. If you need a ride from or to the airport, the hostel can arrange it before your check-in date. Taxi, car hire and shuttle services provided by the hostel make it easy to plan your day trips, sightseeing, and more around Ho Chi Minh City.
              The hostel provides front desk services such as concierge service and luggage storage for guests' convenience. If you need, the ticket service and tours can even help you book tickets and reservations at all the best shows and programs nearby. Staying for a long time, or just need clean clothes? At the hostel, your favorite travel outfits will be kept clean and available with laundry service provided on-site. For lazy days and nights, in-room conveniences like 24-hour room service, room service and daily housekeeping let you make the most of your room.
              Please be advised that smoking is not allowed in the hostel to allow cleaner air for all guests. Smoking is limited to designated areas only, for the health and well-being of all guests and staff.
              Equipped with handy amenities, guestrooms at Himalaya Phoenix Saigon Hostel guarantee a comfortable stay for all travelers. Some rooms are equipped with linen service and air conditioning for your convenience. Some rooms at Himalaya Phoenix Saigon Hostel include special design features like a balcony or terrace. In-room entertainment such as television and cable TV is provided for guests in some selected rooms.
              The hostel also offers a refrigerator, bottled water, a coffee or tea maker, instant coffee, instant tea and mini bar in some rooms for when you feel like it is needed. It's good to know that a hair dryer, toiletries and towels are provided in some guest bathrooms.


              Dining and things to do

              Everyone loves a good cup of coffee! A coffee shop on-site means you can enjoy a cup of real, freshly brewed coffee every morning -- or anytime you feel like it. If you don't feel like going out to eat, you can always opt for the delicious dining options at the hostel.
              Recreational facilities at Himalaya Phoenix Saigon Hostel are designed for escape and relaxation. Have fun with your friends or family, or even meet new people at the shared lounge and TV area.


              Around the property

              Take advantage of the opportunity to explore Ho Chi Minh City while in the city. Experience local culture through architecture at Central Post Office located 1.1 km away. The best way to remember your time in Ho Chi Minh City is with a nice gift at Ben Thanh Market located about 600 m away.


              Reasons to stay here

              This hostel beats 96% of accommodations in the city on value for money.
              This accommodation is highly recommended for its location, scoring higher than 96% of other options in the city.
              This accommodation is highly rated for its staff and service, beating 94% of competition within the city.

              Show more
              Amenities and facilities
              Excellent
              Facilities

              8

              Most talked about facilities

              Breakfast

              29 mentions

              Housekeeping

              15 mentions

              Internet

              1 mention

              Languages spoken

              • English
              • Vietnamese

              Internet access

              • Free Wi-Fi in all rooms!
              • Wi-Fi in public areas

              Things to do, ways to relax

              • Ticket services
              • Tours

              Dining, drinking, and snacking

              • Coffee shop
              • Restaurants
              • Room service [24-hour]

              Services and conveniences

              • Concierge
              • Currency exchange
              • Daily housekeeping
              • Elevator
              • Laundry service
              • Luggage storage
              • Postal service
              • Smoke-free property
              • Smoking area

              For the kids

              • Family room

              Access

              • Check-in/out [private]
              • Check-in [24-hour]
              • Front desk [24-hour]
              • Pets allowed
              • Security [24-hour]

              Getting around

              • Airport transfer
              • Rental car
              • Shuttle service
              • Taxi service

              Available in all rooms

              • Air conditioning
              • Closet
              • Clothes rack
              • Desk
              • Fan
              • Free bottled water
              • Free welcome drink
              • Internet access – LAN
              • LAN Internet in room [free]
              • Linens
              • Locker
              • Mirror
              • Non-smoking
              • Private entrance
              • Seating area
              • Shower
              • Slippers
              • Towels
              • Wake-up service
              • Wi-Fi [free]
              Food and dining
              Breakfast options
              • Asian
              Location
              7/12 Nguyen Trai, Ben Thanh ward, District 1, Ho Chi Minh City, Vietnam, 700000
              Exceptional
              Location

              9

              Airports

              • Tan Son Nhat International Airport (SGN)
                6.5 km 25 min drive
              • Can Tho International Airport (VCA)
                131.9 km

              Public transportation

              • Saigon Railway Station
                2.2 km 11 min drive
              • Ben Xe Mien Dong Bus Station
                5.3 km 24 min drive

              Hospital or clinic

              • Nu Cuoi Duyen Dental Clinic
                120 m

              Shopping

              • Ben Thanh Market
                600 m 8 min walk

              Convenience store

              • Family Mart
                100 m 1 min drive

              Cash withdrawal

              • ATM
                330 m 7 min walk
              What's nearby

              Popular landmarks

              • Ben Thanh Market
                600 m
              • The Independence Palace
                780 m
              • War Remnants Museum
                990 m
              • Central Post Office
                1.2 km
              • Saigon Notre Dame Cathedral
                1.2 km
              • Bitexco Financial Tower
                1.2 km
              • A O Show - Lune Production
                1.3 km
              • Saigon Opera House (Ho Chi Minh Municipal Theater)
                1.3 km
              • Ho Chi Minh Squares
                1.5 km
              • Cu Chi Tunnels
                37.1 km

              Nearby landmarks

              • Gaya
                70 m
              • Vòng xoay Phù Đổng Thiên Vương
                90 m
              • Zen Plaza
                110 m
              • Nu Cuoi Duyen Dental Clinic
                120 m
              • 23/9 Park
                150 m
              • H&D Tailor
                160 m
              • Lechat Silk
                190 m
              • Pour Homme
                190 m
              • FFF phạm ngũ lão
                200 m
              • Pham Ngu Lao Street
                200 m
              Distances shown are straight-line distances on the map. Actual travel distances may vary.
              Property policies
              Children and extra beds

              Extra beds are dependent on the room you choose. Please check the individual room capacity for more details.

              All children are welcome.

              Infant 0-1 year(s)
              Stay for free if using existing bedding.
              Baby cot/crib available upon request
              Children 2-6 year(s)
              Must use an extra bed
              If you need an extra bed, it will incur an additional charge.
              Guests 7 years and older are considered as adults
              Must use an extra bed which will incur an additional charge.
              Others
              • When booking more than 5 rooms, different policies and additional supplements may apply.
              Some helpful facts

              Check-in/Check-out

              • Check-in from14:00
              • Check-out until12:00

              The property

              • Number of rooms 10

              Reviews of Himalaya Phoenix Saigon Hostel from real guests

              Provided by verified guests of Agoda
              8.6
              /
              10
              Cleanliness8.4
              Facilities8.0
              Location9.0
              Service8.8
              Value for money8.9
              High score for Ho Chi Minh City
              Rating
              9+ Exceptional (99)
              8-9 Excellent (44)
              7-8 Very Good (33)
              6-7 Good (12)
              <6 Below Expectation (13)
              Time of the year
              Mar - May (36)
              Jun - Aug (50)
              Sep - Nov (54)
              Dec - Feb (61)
              All guests (335)
              All room types
              All languages

              Show reviews that mention 

              Showing 201 verified guest comments
              12345
              10.0
              Exceptional
              Carolina from Portugal
              Solo traveler
              Bed in Mixed Dormitory Room 6 beds
              Stayed 1 night in June 2019

              Amazing !!”

              The hostel are very nice. The rooms are big, i stay in a female dorm with 6 beds, with private toilet. Everything it’s super super clean. The breakfast are simple but really nice and with a lot of choices. Ahhh and the staff? Brilliant. Phoung and the other girls are super friendly and helpful. They want to talk to you to improve English language and also they give me a lot of tips about Ho Chi Minh city and Dalat. If I come again definitely i will stay in this hostel :) Thanks girls ! :)

              Reviewed June 22, 2019

              See room deals

              Thank you for taking the time to review. We are very pleased that you were satisfied when staying at our hotel. Hope to see you again on your next trip. Obrigada Linda :)

              Responded June 25, 2019
              Himalaya Phoenix Saigon Hostel
              10.0
              Exceptional
              Danny from Indonesia
              Solo traveler
              Stayed 4 nights in June 2019

              I really recommend this place. It's a convenient location right in the center of the city. ”

              The staff is incredible! They are really helpful. I had an issue in Ho Chi Minh city and they went above and beyond to help me out. I'm really thankful to them. A special thanks to Thanh the supervisor. They were really friendly and kind. I really appreciate the hospitality and everything they did for me. Who ever has a bad review for this place I think it's wrong and not fair for this hostel. There was a guest the night I arrived and he was a wild old man who I think didn't know how hostels work and was easily bothered by everything around him. He had no patience and so inconsiderate. Whether he had a bad review or not.. it was all on him not the hostel. Definitely, I will stay here again next time I go to Ho Chi Minh City.

              Reviewed July 11, 2019

              See room deals

              10.0
              Exceptional
              Margaret from United States
              Solo traveler
              Bed in Female 6-Bed Dormitory Ensuite
              Stayed 14 nights in May 2019

              Exceptional”

              I enjoyed my stay here, staff was friendly and very helpful in answering my questions regarding the area. The room was kept clean daily and the included breakfast was more then just toast and well cooked. Starbucks and Burger King are within 5 mins walk from the hostel. Plenty of eateries and food market. Plus transportation too

              Reviewed May 21, 2019

              See room deals

              10.0
              Exceptional
              Karl
              Group
              Bed in Mixed Dormitory Room 6 beds
              Stayed 3 nights in September 2019

              Recommended Hostel”

              We arrived past midnight and we were able to have a late check-in as a special request and paid the hostel upon arrival though it was reserved and pre-booked months ago. The internet connection was great. The staffs were nice and friendly. Food was served deliciously, and Vietnamese coffee is really superb. If you are a traveller and looking for a budget friendly hostel, this is a good recommendation. Thank you!

              Reviewed October 01, 2019

              See room deals

              10.0
              Exceptional
              Dan from United States
              Solo traveler
              Bed in Mixed Dormitory Room 6 beds
              Stayed 1 night in December 2019

              Exceptional”

              Superb location away from the street noise in a cul de sac street. 300M from the park and Central Market in District 1 and 400M from Bui Vien Street! Includes several options for breakfast including tea and coffee from 7-9:30 AM. Plenty of travel options at the Hostel as well as near the park as well as the Ben Than (local) bus terminal at the far end of the park. Major sites including the post office, cathedral and river within walking distance or take a local bus!

              Reviewed December 17, 2019

              See room deals

              10.0
              Exceptional
              Raymond from Philippines
              Solo traveler
              Bed in Mixed Dormitory Room 6 beds
              Stayed 2 nights in August 2019

              Exceptional”

              All the famous landmarks in HCMC is just walking distance, making this place very strategic. The staff was very helpful and polite. The value for money is on point. Rooms are comfortable. Definitely worth recommending to someone.

              Reviewed August 21, 2019

              See room deals

              9.6
              Exceptional
              Angela from Philippines
              Solo traveler
              Bed in Female 6-Bed Dormitory Ensuite
              Stayed 2 nights in July 2019

              Exceptional”

              The Staffs are really nice. I booked the bus from Vietnam to Cambodia from them at a reasonable price and the bus picked me up at the hostel. Also, one thing that I liked the most is the free breakfast. If you will stay here for a week, you need to eat the same breakfast again as they only have 6 options. For cleanliness, I've never seen someone or a staff cleaning our room for my 2 nights stay and oh! you need to bring your own toiletries like shampoo and body wash coz they dont provide those things, they just give you a towel.

              Reviewed July 05, 2019

              See room deals

              10.0
              Exceptional
              Javier from Malaysia
              Solo traveler
              Bed in Mixed Dormitory Room 6 beds
              Stayed 2 nights in May 2019

              Very good!”

              The smell of the sheets/pillow/towel was amazing. The staff was very nice and the breakfast great. They helped me book my bus ticket to Mui Ne even though I didn't buy it from them.

              Reviewed June 05, 2019

              See room deals

              10.0
              Exceptional
              Jovanie from Philippines
              Solo traveler
              Bed in Female 6-Bed Dormitory Ensuite
              Stayed 1 night in July 2019

              Exceptional”

              Very good location. Staff is very friendly. Place is really nice and comfortable to stay at. Will stay here again next time

              Reviewed July 16, 2019

              See room deals

              10.0
              Exceptional
              YongTeng from Malaysia
              Solo traveler
              Bed in Female 6-Bed Dormitory Ensuite
              Stayed 3 nights in January 2020

              Worth to stay ”

              Stayed at ensuite female dorm with huge bathroom. Clean, strategic and safe location even you are travelling alone. A hundred meter away to get both famous banh mi in the city, Huynh Hoa and Banh Mi 37 Nguyen Trai.

              Reviewed January 19, 2020

              See room deals

              9.6
              Exceptional
              Armi from Philippines
              Solo traveler
              Bed in Female 6-Bed Dormitory Ensuite
              Stayed 3 nights in November 2019

              perfect!”

              I like the place very much and the owner too. The place is clean with airconditioning and a big bathroom. I had a hard time looking for the place though, made me upset at first but everything went well when i found the place. Tip: do not use the name of the hotel when u book grab. Use Togo coffee. I will stay here the next time i visit ho chi minh, thats for sure.

              Reviewed November 24, 2019

              See room deals

              9.6
              Exceptional
              Frances from United States
              Solo traveler
              Bed in Mixed Dormitory Room 6 beds
              Stayed 1 night in November 2019

              Himalaya Phoenix is it!!!”

              Newly built hotel in pristine condition. Beautiful, clean and quiet location with the full view of Crazy House from the balcony. Super friendly staff will help you with care like a family.(Thank you so much~~~) I’ve stayed Himalaya Phoenix in Dalat and Saigon. Next time in Hanoi, it will be Himalaya Phoenix!!!

              Reviewed November 25, 2019

              See room deals

              10.0
              Exceptional
              NERISSA from Philippines
              Solo traveler
              Bed in Female 6-Bed Dormitory Ensuite
              Stayed 3 nights in July 2019

              Discover Ho Chi Minh”

              This hotel is highly recommended especially for solo traveler like me. The staff are kind and accomodating. Additionally, the place is walking distance from the tourist spots. Keep it up!

              Reviewed July 23, 2019

              See room deals

              10.0
              Exceptional
              Sofia
              Solo traveler
              Bed in Female 6-Bed Dormitory Ensuite
              Stayed 1 night in June 2019

              Great people, super helpful! Bed sheets smelt amazing and breakfast was tasty.”

              WiFi was great and showers were nice and hot! Lovely place :))

              Reviewed June 19, 2019

              See room deals

              Thank you for taking the time to review. We are very pleased that you were satisfied when staying at our hotel. Hope to see you again on your next trip . Thank you!!

              Responded June 25, 2019
              Himalaya Phoenix Saigon Hostel
              10.0
              Exceptional
              Sopheap from Cambodia
              Family with young children
              Family Room with Balcony
              Stayed 1 night in January 2020

              Best location and most affordable ”

              You have everything including kid playground. I ll stay here again and best recommended.

              Reviewed January 13, 2020

              See room deals

              9.6
              Exceptional
              maria from Taiwan
              Group
              Superior Double Room
              Stayed 1 night in November 2019

              If I were go back in HCMC, I would rather to stay again here”

              Very nice and approachable staff, affordable price, comfortable stay and near at the tourist destinations . I will recommend this hostel to everyone wants to go in Ho Chi Minh City -Nikka 🇵🇭

              Reviewed November 09, 2019

              See room deals

              10.0
              Exceptional
              Hasnie from Malaysia
              Group
              Bed in Female 6-Bed Dormitory Ensuite
              Stayed 2 nights in July 2019

              Value for money”

              I love staying here. The staffs are very helpful and friendly. But maybe you can add a mirror in bedroom. 😄

              Reviewed July 13, 2019

              See room deals

              9.6
              Exceptional
              Sabrina from France
              Solo traveler
              Bed in Mixed Dormitory Room 6 beds
              Stayed 1 night in November 2019

              Perfect ”

              Everything was perfect. The hostel is nice, the breakfast very nice ( you have a lot of choice and it's complete). The owner is so so kind !!! she is very helpfull, friendly.... thank you for everything!!! I really recommand this hostel.

              Reviewed November 13, 2019

              See room deals

              9.2
              Exceptional
              John from Philippines
              Solo traveler
              Bed in Mixed Dormitory Room 6 beds
              Stayed 4 nights in November 2019

              Excellent Location with Excellent People”

              I probably would not have survived my first few days in Vietnam if it weren't for Thanh. She helped with everything from directions to booking tickets and even some tips about my next destinations (I was heading North). Most of the places like the Saigon Opera House, War Remnants' Museum, Central Post Office, etc. were just walking distance (unless you cannot stand the heat and humidity). Overall, very good value for money, excellent location and very accommodating people.

              Reviewed December 01, 2019

              See room deals

              9.2
              Exceptional
              Wee from Malaysia
              Solo traveler
              Bed in Mixed Dormitory Room 6 beds
              Stayed 4 nights in August 2019

              Friendly Staff, Good location”

              Stay there for 4 nights. Check in on Friday and the AC blower was not working fine cause by blocked dust inside. So informed the front desk staff Nga the next day. So two nights passed and nothing had been done to the AC. Surprised me on Monday morning 2 guys came to service the AC. And is good as new. Reason is that day was Saturday when I informed her and no ones work on weekend. That was quick respond from her. That meant the hostel take good care of it's guest. 100% recommend to stay there. Free breakfast was simple but good enough Definite will stay there again. The staff all is very friendly

              Reviewed August 13, 2019

              See room deals

              12345
              This is a popular property. Don't miss out!

              Back to search results

              Back to room choices

              |

              Dismiss