It has unique features among the mediaeval fortifications in Cantabria thanks to the conservation of its walled precinct, the remains of the moat and its chapel-fortress.
- Construction: Tower
- Artistic period: Gothic
- Historic period: 12th century
- From Jun 15 to Sep 30
From Tuesday to SundayFrom 10:00 AM to 2:00 PM From 6:00 PM to 8:00 PM
- Closing days: Monday
- Admission free