Located inside the Mall of America, Underwater Adventures is home to the world's largest underwater aquarium. A moving walkway guides you through a 300-foot tunnel, where sharks, fish, stingrays, sea turtles, etc. swim right past you. It really is neat. There are thousands of sea creatures available for your viewing; there is even an area where you can touch some of them. There is a virtual submarine ride, demonstrations, and more. Kids love this place, but it is a hit with people of all ages.