Genoa's much-vaunted aquarium is one of the largest in Europe, with more than 5000 sea creatures, including sharks. Moored at the end of a walkway is the ship Nave Blu, a unique floating display, specialising in exhibits of coral reefs. The aquarium’s 'cetaceans pavilion' may concern some visitors: while the dolphins here do not perform tricks and the aquarium fulfils its international legal requirements, including rehousing abused dolphins, animal welfare groups claim keeping dolphins in enclosed tanks is harmful for these complex creatures.
Buy tickets online to avoid long, hot queues (and harassment from street traders) in summer; a combination ticket (adult €48) gives you access to other port attractions including the Galata Museo del Mare.