Is the Barcelona Aquarium worth it? Best visit tips

Now you’ll step into a long glass tunnel that runs underwater. It first curves around half the perimeter of the massive sharks tank, and then continues straight across it for a truly immersive experience. Here live the three largest species of sharks at L’Aquarium: the sand tiger shark, the sandbar shark, and the angular roughshark. These impressive predators share the tank with majestic stingrays, eagle rays, guitarfish, ocean sunfish, and many more fascinating creatures — together creating a spectacular community of around 80 different species all swimming side by side.