One of the city's top tourist attractions, the Dubai Aquarium houses 140 species of sea life in the huge suspended tank on the ground floor of the Dubai Mall. As well as free viewing from the mall, if you enter the Underwater Zoo you can walk through the aquarium tunnels.
There are a myriad of activities where you can get a closer look at the sea life. Glass bottom boat tours (on top of the tank) are particularly popular. Cage snorkeling and shark diving activities are also on offer.