Board your Aussie adventure catamaran and cruise to a very special spot on the Great Barrier Reef, one of the "Seven Natural Wonders of the World." Grab your gear and go snorkeling. Or gaze beneath the surface aboard a glass-bottom boat for incredible underwater views. Either way, you'll discover one of the world's most vibrant marine environments. Take a break and relax on deck with a refreshing drink before the open-water run home.