Explore Barcelona Aquarium, boasting a spectacular Oceanarium and a fascinating transparent tunnel. 

Home to 11,000 animals from 450 species, it boasts an 80-meter-long underwater tunnel for encounters with sharks, rays, and plenty of marine species. Don't miss out on the chance to explore the Mediterranean's marine treasures—book your tickets online for a convenient and enriching journey beneath the waves.

The Barcelona Zoo has creatures that everyone loves, from the most cuddly to the most fierce. Within Parc de la Ciutadella's 35 acres (14 hectares), you'll find a zoo housing 7,000 animals spanning 400 species. Here, you can see everything from dolphins to rhinoceros, all housed in enclosures designed to resemble their native environments.