In the Marine Corridor, the Oceanarium Rosario Islands, shows a series of aquariums with different environments and marine organisms. In the coral reefs the dominant species is the slarlet coral, which through the years can build extraordinary marine formations at the bottom of the sea.

Silver color and fast swimming fish are native of clear shallow waters. Many organisms known as invertebrates with particular behaviors and shapes, are very attractive.

Small, colorful fish with magical designs swim in the protection created by the coral reef. The community made by the roots of the red mangrove tree is very interesting and it has many specimens of each species.