It is now a focal point of the city and tourist attraction, containing the Maremàgnum (a mall containing shops, a multiplex cinema, bars and restaurants), IMAX Port Vell and Europe's largest aquarium containing 8000 Fish and 11 sharks contained in 22 basins filled with 6 million litres (1.5 million gallons) of sea water. A pedestrian walkway, Rambla de Mar, connects La Rambla to Port Vell.[2] It incorporates a swing bridge, in order to allow ships to enter and exit the harbour.[3]