Explore the very outer great barrier reef in luxury and style with calypso the custom designed vessel will take you to agincourt or opal reef both regarded as some of the most significant sites on the great barrier reef snorkeling is the easiest way to experience the reef or try an introductory dive no experience required for the advanced divers certified diving is available let calypso take you to the outer edge of the great barrier reef and explore the rich and diverse coral gardens