Beneath the towering glass dome of the Florida Aquarium, visitors can explore the depths of the sea. The fantastic 2-million-liter (500,000-gallon) Coral Reef Gallery has a walk-through tunnel where guests can feel surrounded by colorful reef fish, moray eels and sharks. There are also exhibits showcasing the flora and fauna of Florida's wetlands and the tropical habitats of Madagascar. Those looking for a hands-on experience can dive with sharks or swim in the coral reef tank. The aquarium also offers daily cruises around Tampa Bay to spot wild dolphins, birds and the occasional manatee.