Hawaii is the most recent of the 50 U.S. states, and is the only U.S. state made up entirely of islands. Hawaii is made up of 20 islands, the biggest are Maui, Lanai, Molokai, Oahu and Kauai. Hawaii has year round warm waters and has been a popular scuba dive location for years offering some of the best dive sites in the world for divers of all experience levels. Diving in the Hawaiian Islands is mo...