The largest aquarium in South America is Rio's newest major downtown attraction. You can get an up-close look at some 350 different species (there are more than 8000 animals in all), spread among two dozen different tanks. The highlight is a 3.3-million-liter aquarium with a tunnel through the middle that gives the impression of walking right through the depths of a rich aquatic zone.
Sharks, rays, sea turtles and many fish found in Brazil's coastal waters are among the star attractions. There are also hands-on areas for kids.