This Barcelona Aquarium is a must-visit attraction for anyone interested in marine life. While it may not be the largest aquarium, it has a wide variety of fish and other sea creatures on display. The tanks are themed around different marine habitats, which adds to the educational value of the visit. However, some visitors have noted that the aquarium is quite small and that the variety of species on display is limited. On the other hand, the aquarium has made a great effort to provide an immersive experience, with a large underwater tunnel that allows visitors to get up close and personal with sharks and other marine animals. Unfortunately, some visitors have also noted that the aquarium can get quite crowded, especially on weekends. Additionally, the prices for admission can be steep, although some visitors have noted that it is worth the cost for the unique experience on offer. It's worth noting that the aquarium has made an effort to be accessible to visitors with disabilities, with wheelchair-accessible parking and entrance. While it may not be perfect, the Barcelona Aquarium is a great destination for families and anyone interested in marine life. However, it's a good idea to plan ahead and book tickets in advance, as the aquarium can get quite busy. Also, be aware that there's a potential safety concern in one of the areas of the aquarium.