Here are some ideas:
1. Visit the Maritime Museum of the Cantabrian Sea and learn about the most important marine species in the area, plus you can enjoy its large aquarium.
2. Explore a renowned art center like the Centro Botín, built in the Pereda Gardens by Renzo Piano.
3. Discover the local gastronomy and typical dishes of the area. A delight for the palate.
4. Stay at Las Carolinas and enjoy all these plans in a unique stay.