Fortress of San Marko

The stone fortress sits at 260 meters altitude between San Sebastián and Rentería municipalities, featuring a polygonal layout with multiple defense positions.

Built in 1888 as part of the Oyarzun Entrenched Camp project, this fortification was designed to protect the Pasajes port and surrounding coastal areas.

The fortress now serves as a cultural center within Lau-Haizeta Park, offering exhibitions about regional military history and defensive architecture.

The fortress contains exhibition spaces, guard rooms, powder magazines, and an underground water cistern with a capacity of 100 cubic meters.

A 530-meter covered pathway leads to a tunnel connecting to the main entrance bridge, displaying advanced 19th-century military engineering techniques.

Location: San Sebastián

GPS coordinates: 43.29745,-1.91315

Latest update: March 14, 2025 00:02