The spectacular Oceanarium, the only one of its kind in Europe, is the largest tank and the one with the greatest number of species in L’Aquàrium de Barcelona. With a diameter of 36 metres and 5 metres in depth, it contains 4,500 m3 of water. Such diverse species are found as giltheads, morays, ocean sunfish, rays and two kinds of sharks: the sand tiger shark (Carcharias taurus) and the sandbar shark (Carcharhinus plumbeus), the true stars of L’Aquàrium.
A stroll through the Oceanarium is a spectacular experience. A transparent tunnel over 80 m long crosses under it, which allows visitors to go through it as if they were walking on the sea bed.