The 5.7-million gallon tank at the Seas with Nemo & Friends pavilion at Epcot has enough sea life to keep everyone entranced. To get up-close and personal with the marine life, in-tank scuba diving is available. Non-scuba-divers can opt to explore Disney's Dolphins in Depth, a program that brings you face-to-face with one of nature's smartest creatures. Don't worry if you can't swim—this is a knee-deep experience. Scuba diving is available for a cost of $140; the Dolphins in Depth program is $150.