The historic Ercilla Tower, declared a National Monument in 1943, has since 1948 been home to the rooms of the Arrantzaleen Museoa. Here you will share and understand the life and work of Basque fishermen. The museum describes their life and customs, the boats they have used and the techniques they have employed over time for fishing and the selling of fish. We can also learn about the history of the Basque Auxiliary Navy, whose primary core was made up of Basque fishermen.
There is also a space dedicated to learning about the history of Ercilla Tower, a building from the late 15th century, merely urban and commercial and the site of an illustrious family of merchants.