This is more coffee shop encircled with fish tanks than proper aquarium, though the specimens in those tanks are nice representatives of the area's indigenous marine life. You'll see huge signs and banners all over town advertising the Aquarium, but it is a little tricky to find in its home on a side street off Decumanus. Once there, it takes about 15 minutes to see everything that swims. The exhibit floor plan ends in the middle of the cafe/souvenir shop.