Fuerte de San Marcos
Military fort from 1888 above Errenteria, converted into a cultural venue with a museum, a room on the Aizpitarte caves and a viewpoint over Oarsoaldea.
Have only individual sections read aloud
About the museum
The San Marcos fort was built in 1888 on Mount Bizarain, at a height of about 260 m, and served the army until 1970. Today it is a leisure and cultural venue and the main viewpoint of the Oarsoaldea area, with views over the bays of La Concha, Pasaia and Txingudi. It lies less than 10 km from San Sebastián.
The visit allows you to explore spaces previously closed to the public and a museum with replicas of cannons and howitzers, soldiers and other elements of military activity. One room is dedicated to the Aizpitarte caves and to recent Palaeolithic finds, with information and a children's area. At the entrance there is a tourist information point.
Near the fort are the Txoritokieta fort, megalithic monuments, signposted trails and a picnic area. The fort opens for about six months a year, from Holy Week onwards.
Highlights
- Military fort from 1888 with museum of cannon and howitzer replicas
- Room on the Aizpitarte caves with a children's area
- Viewpoint over Oarsoaldea and the bays of La Concha, Pasaia and Txingudi
- Free guided tours, also in a family version
- Panoramic lift and tourist information point
Permanent exhibitions
- Museo del fuerte – Replicas of cannons, howitzers, soldiers and artillery showing the military activity of the fort.
- Sala de las cuevas de Aizpitarte – Information on the Aizpitarte caves and recent Palaeolithic finds, with a children's area.
Admission & discounts
Admission is free.
Self-guided visits to the museum and guided tours are free of charge. Groups must book in advance by phone (+34 943 449 638) or by email (turismoa@errenteria.eus).
Accessibility
- Wheelchair accessible: no information
- Elevator
- Accessible restroom: no information
- Accessible parking: no information
- Service dogs welcome: no information
- Tactile models & exhibits: no information
- Sign language tours: no information
- Easy-to-read materials: no information
- Audio description: no information
The site has a panoramic lift.
Kids & families
Great for kids & families
- Family tours & workshops
- Playground / play area
There is a special guided tour for families with participatory activities, and a children's area in the Aizpitarte caves room.
Getting there & parking
By car
Parking available
Limited parking.
The fort is on Mount Bizarain, less than 10 km from San Sebastián. The information point is just after crossing the access bridge.
Get directionsAmenities & dining
The museum hasn’t published any information on this.
Events & venue rental
The museum hasn’t published any information on this.
Plan your visit
| Guided tours | yes |
|---|---|
| Good to know | Guided tours are free of charge, explain the history of the fort and the development of the valley from the viewpoint, and there is a family version with participatory activities for children. Groups book by phone. |
