Travelers find literary escape and social connection at this beachfront hostel, where ocean-view drinks and nearby Miramar Palace create memorable experiences.
Located steps from Ondarreta Beach, Koisi Hostel combines relaxation and community with its coffee shop/cafe and library. Guests enjoy the terrace views, bar service, and free WiFi throughout. The multilingual staff enhances the experience at this perfectly positioned retreat.
Located near the beach, Koisi Hostel is in Antiguo, a neighborhood in San Sebastián. Miramar Palace and Plaza de La Constitucion are notable landmarks, and the area's natural beauty can be seen at Ondarreta Beach and Alderdi-Eder Park. Zaldiko Maldikoa and Monte Igueldo are also worth visiting. Visit our San Sebastián travel guide
Paseo de Heriz 38, Barrio del Antiguo, San Sebastián, Gipuzkoa, 20008
What's nearby
Miramar Palace
6 min walk - 0.6 km
Concha Promenade
6 min walk - 0.6 km
Ondarreta Beach
6 min walk - 0.6 km
Monte Igueldo
2 min drive - 1.5 km
Plaza de La Constitucion
6 min drive - 2.8 km
Getting around
Hernani Station
10 min drive
San Sebastian (EAS)
26 min drive
Restaurants
Taberna Joxe Mari
6 min walk
Kalaberri
6 min walk
La Cervecería del Antiguo
8 min walk
Hemen
8 min walk
Bar Pepe
8 min walk
About this property
Koisi Hostel
Hostel near Ondarreta Beach
Located close to Miramar Palace and Alderdi-Eder Park, Koisi Hostel provides a terrace, a coffee shop/cafe, and a library. In addition to laundry facilities and a bar, guests can connect to free in-room WiFi.
Other perks include:
Continental breakfast (surcharge), express check-out, and express check-in
Tour/ticket assistance, luggage storage, and smoke-free premises
Multilingual staff, concierge services, and a computer station
Room features
All guestrooms at Koisi Hostel boast thoughtful touches such as air conditioning, in addition to amenities like free WiFi and sound-insulated walls.
Extra amenities include:
Blackout drapes/curtains, local maps, and sound-insulated walls
Daily continental breakfast available 8:00 AM to 11:00 AM for a fee: EUR 7.80 for adults and EUR 7.80 for children
A bar/lounge
A coffee shop/cafe
A restaurant
Snack bar/deli
Things to do
Library
Family friendly
Laundry facilities
Snack bar/deli
Soundproofed rooms
Conveniences
Laundry facilities
Luggage storage
Shared microwave
Guest services
Concierge services
Multilingual staff
Tour and ticket assistance
Business services
Computer station
Outdoors
Terrace
Accessibility
If you have requests for specific accessibility needs, please contact the property using the information on the reservation confirmation received after booking.
No elevator
Wheelchair accessibility
More
1 building
4 floors
Smoking not allowed
Room amenities
Bedroom
Bedsheets provided
Blackout drapes
Bathroom
Towels provided
More
Air conditioning (climate-controlled)
Heating (climate-controlled)
Soundproofed rooms
Policies
Check-in
Check-in start time: 3:00 PM; Check-in end time: anytime
Express check-in available
Minimum check-in age: 18
Check-out
Check-out before 11:00 AM
Express check-out available
Special check-in instructions
There is no front desk at this property
Guests will receive an email within 24 hours before arrival with check-in instructions and an access code; access will be through a private entrance
For any questions, please contact the property using the information on the booking confirmation
Information provided by the property may be translated using automated translation tools
The credit card presented at check-in should be the same card used at time of booking. If the credit card holder is not on the reservation, guests must contact the property in advance of arrival to confirm identification.
Access methods
Access code, private entrance
Pets
Pets allowed for an extra charge of EUR 22 per pet, per night
Service animals are welcome, and are exempt from fees
Welcoming dogs only
Food and water bowls are available
Children and extra beds
Children are welcome
Rollaway/extra beds are not available
Property payment types
Important information
Optional extras
Fee for continental breakfast: approximately EUR 7.8 for adults and EUR 7.8 for children
Pet fee: EUR 22 per pet, per night
Service animals are exempt from fees
Towels fee: EUR 2 per person, per stay (or guests may bring their own)
The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.
You need to know
Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
The name on the credit card used at check-in to pay for incidentals must be the primary name on the guestroom reservation
This property accepts credit cards and debit cards; cash is not accepted
Cashless transactions are available
Safety features at this property include a fire extinguisher, a smoke detector, a security system, a first aid kit, and window guards
Please note that cultural norms and guest policies may differ by country and by property; the policies listed are provided by the property
We should mention
This property does not have elevators
Cash transactions at this property cannot exceed EUR 1000, due to national regulations; for further details, please contact the property using information in the booking confirmation
This property's policy is to refuse certain bookings for the purpose of group events or parties, including pre-wedding stag/bachelor and hen/bachelorette parties
Only registered guests are allowed in the guestrooms
Alcohol is not permitted at this property
Property is also known as
Koisi Hostel San Sebastian
Koisi San Sebastian
Koisi Hostel San Sebastián
Koisi Hostel Hostel/Backpacker accommodation
Koisi Hostel Hostel/Backpacker accommodation San Sebastián
Frequently asked questions
Is Koisi Hostel pet-friendly?
Yes, dogs are allowed at this property. There's a fee of EUR 22 per pet, per night. Service animals are exempt from fees.
How much is parking?
This property doesn't offer parking.
What time is check-in at Koisi Hostel?
Check-in start time: 3:00 PM; Check-in end time: anytime.
What time is check-out at Koisi Hostel?
Check-out is at 11:00 AM.
Where is Koisi Hostel located?
Located in Antiguo, this hostel is within a 15-minute walk of Ondarreta Beach and Miramar Palace. Alderdi-Eder Park and Plaza de La Constitucion are also within 2 mi (3 km). San Sebastian Amara Station is 30 minutes by foot.
Can I cancel my reservation for free and receive a full refund?
Yes, this property offers free cancellation on select room rates, because flexibility matters! Please refer to the property cancellation policy on our site for more details about any exclusions or requirements.
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Reviews
Koisi Hostel Reviews
8.4
Very Good
All reviews shown are from real guest experiences. Only travelers who have booked a stay with us can submit a review. We verify reviews according to our guidelines and publish all reviews, positive or negative.More informationOpens in a new window
Family of 4. Stayed 1 night in a family room with private bathroom and it was perfect, even better than we thought. Very well located 10 min walk to the beach and 5 min walk to bus station to go to the city center. Would definitely recommend.
This is a hostel mainly for young proper as hostels usually are for. People coming in to the dormitory in the night talking and laughing loud. I was in a dormitory of 6 beds only for women. It was very small and the floor was crowded with big luggages even if there was a smaller box ( you need a locker) for your things.The bed was without curtain or anything like. The bathroom area was also very small. I have been to hostels more convenient than this one. And the price for one night was around 100 Euro!
Ann
Stayed 1 night in Jun 2025
6/10 Okay
H E
2022/7/9
Liked: Cleanliness
Disliked: Amenities
Kontiki Tours and kids at a sport camp overwhelmed the hostel. Some staff were helpful, some moody. The beds offered little privacy, and the rooms were tight. The patio was unavailable for some reason - or reserved for the bus tour. The location is up a hill, but the parts with views have no chairs or social amenties.
H E
Stayed 2 nights in Jul 2022
4/10 Poor
Kristy
2024/6/6
Disliked: Staff & service, amenities
The hostel had a privacy data leak and was used in a phishing scam. When I asked for a refund since I didn't trust them after my data was leaked, they refused. I booked a different hotel. Be careful booking with them.
We booked a complete room for 4 adults, immediately checked with hotel to make sure we had a private bathroom since we were traveling with my elderly parents, a private bathroom was all we cared about, they confirmed that the bathroom was inside but when checking in later that night, the bathroom was shared with other rooms and when we called to complain about it, they just said that the case was being reviewed but didn't answer until 72 hours later and they denied our claim. Not going back there and not recommending it to anyone with a family.
We were a group of 8 traveling together and walking the camino del Norte. This is on the other side of San Sebastián so added several km to an already long hike...in addition the check in process is the worst I've ever experienced. It took us 2 hours + as there is no person at the front desk to help. I was literally standing at an intercom with 7 others waiting for almost 2 hours! there has to be a more accessible way for those on the go to not have to enter every person' information. A front desk person would make this a much more pleasant experience. Otherwise it was miserable.
Really nice hostel. Clean and modern. Each bed has a lamp, plug sockets and a small space to store a couple of items. Stayed in the 8 bed dorm which was more spacious than the 6 bed dorm. Breakfast was basic - bread, cereal, tea, coffee, juice but included so can't complain.
Close to Ondretta beach (5 min walk) and 30 min walk to Old Town. Preferred Ondreatta beach as it was a bit quieter and sand better. A few places to eat and drink in the area as well.
Only thing that lets the hostel down is that there wasn't much of a social atmosphere. Mainly groups of friends and couples staying there and you would hardly see anyone at the bar. Still managed to meet a few people but not as social as I was expecting. Would be good if the hostel organised activities. So definitely not a party hostel but good if you want relaxed and chilled out.
Overall I'd say I enjoyed it.
Viajé con mi mis dos hijos y estuvimos en una habitación con tres camas, que tiene un diseño que nos encantó. No tuvimos ningún problema con el baño compartido, y las áreas comunes son muy lindas. Nos gustó mucho el barrio, en Antiguo. Muy residencial y tranquilo. Hay que caminar algo para tomar el bus o llegar a zonas de Antiguo con restaurantes, pero a nosotros nos gustó la caminata. Está lejos del casco viejo pero en bus llegas a todo lado en San Sebastián. Este hospedaje está cerca de la PLaya Ondarreta, nuestra favorita, y del funicular que es un viaje muy lindo. Sería genial que en las duchas compartidas hubiera alguna división entre ducha y resto del baño para evitar que se moje el suelo de todo el baño. Hay una escobilla para recoger este exceso de agua, pero en nuestro caso algunas personas no la usaron “ a conciencia” y estaba un poco todo mojado a la hora usar el baño. Fuera de este detalle, los baños super bonitos y limpios.
Priscilla
Stayed 1 night in Oct 2025
8/10 Good
sebastien
2025/8/17
Liked: Cleanliness, staff & service
bon compromis pour la semana grande
partis en famille (4), prix élevé pour peu de jours passés mais raisonnable comparé aux autres logements et pratique. Pas trop loin de la plage, à pied mais compter 2 bons km pour le centre historique.
Estuvimos a gusto en general! Alojamiento tranquilo en la epoca que estuvimos, el personal muy atento y de rapida respuesta a las necesidades, nos pareció muy comodo tantos las camas como los espacios comunes y los baños. Solo pasamos una noche pero estuvo muy bien!!
Quizás reforzaría un poco la limpieza , se sentía pisar tierra /arena en la habitación. Gracias!
Noelia
Stayed 1 night in Sep 2024
8/10 Good
Verified traveler
2024/9/12
Liked: Cleanliness, staff & service, amenities
Il manquait les rideaux au niveau des lit qui était pourtant présent sur l'annonce et il y avait des traces d'usures au niveau des échelles (qui ne sont pas très pratiques d'ailleurs. Il serait bien également de préciser sur l'offre de séjour qu'il est nécessaire d'avoir un cadenas pour fermer le casier. Et pour les femmes, il serait plus rassurant d'avoir un verrou pour fermer la porte de douche.
Si on met à part c'est soucis/remarques, l'hôtel est situé dans une zone calme et facilement accessible à pied, le personnel est très réactif et aimable. J'ai passé un bon séjour.
Nous avons ete super bien accueilli !!! Le petit dejeuner nickel dommage qu'il y est pas de parking privée. Apres pour le ménages il manquait peut-etre un coup de balais ou d'aspirateur sinon cetait parfait.
Il faut savoir qu'il n'y a pas de réception.
Hors je n'ai pas reçu par avance de leur part un SMS ou mail me permettant grâce à un code de m'enregistrer sur leur site afin d'avoir codes et n° de chambre.
Je suis arrivé à 20h et il n'y avait donc qu'un téléphone/interphone pour avoir de l'aide.Soit disant disponible 24/24 et 7j/7. J'ai du appuyer 50 fois pour obtenir quelqu'un. Qui parle bien sur espagnol et heureusement anglais. On était proche des 22h et je me voyais dormir dans ma voiture.
Enfin quelqu'un ! Le problème est que le son est nasillard plus le bruit de la cafétéria et des personnes présentes, c'était très dur de comprendre.
Entre temps, J'ai fait trois demande à Koisi hostel par internet sur leur site pour qu'il m'envoient un mail avec mes codes sans succès !!!
J'étais près de leur téléphone avec mon smartphone et mon PC portable durant tout ce temps.
Ce n'est que vers 22h que j'ai enfin pu faire mon enregistrement et aller dans ma chambre. C'est une honte un tel système et surtout qu'il n'y es aucune aide facile autre qu'un vieux téléphone pourri dans une pièce de passage. Sans réception de leur mail avec un code de réservation on ne peut rien faire.
A noter que j'ai vainement tenter par le numéro d'aide en 08 de joindre hôtel.com sans succès depuis l'espagne et j'ai fais toutes les combinaisons possibles !!!
Hôtel très correct, sympa, hyper propre un peu sur les hauteurs de San Sebastian. Le personnel est très disponible et accueillant. Attention, nous n'avons rencontré aucun personnel parlant français mais aucun problème en anglais.
Lo que necesitas para poder dormir en San Sebastian. Una de las opciones mas económicas. La habitación estaba muy bien. La cama cómoda. Lo único el baño compartido, no nos duchamos porque no habiamos llevado chanclas.
Por lo demás muy bien. Tiene un espacio con mesas y un microondas por si quieres cenar alli, y también tiene la cafeteria.