This aquarium may not be the biggest, the best or the most beautiful of the world but the entry…read moreprice is in relation with its size. Plus it did the trick with my kids (8 and 2) during about two hours. Do not miss the exterior terrace with view over the Tower of Hercules. I really appreciated the size of the exterior pools for the seals: really nice to see them swim. The aquarium is educative and concentrate of local species. Do not therefore expect exotic species. The parking is free of charge.