Few subjects are so dear to the hearts of Galegos as the ocean and its creatures, and one of the exhibits here is literally the ocean on the other side of a glass wall from the aquarium. Fish swim by and crabs scuttle across the ocean floor. The underwater experience is amplified in an exhibit room that simulates the experience inside Captain Nemo’s Nautilus in the Jules Verne adventure tale, 20,000 Leagues Under the Sea. Other tanks replicate marine environments around the world. Atlantic harbor seals cavort in their own pool. Changing exhibits highlight subjects as diverse as the effects of global warming on coral reefs or the promises and problems of aquaculture.