Join us for the ultimate Great Barrier Reef overnight (liveaboard) snorkelling cruise. Spend your days and nights exploring the best outer Great Barrier Reef snorkel sites - there are so many diverse and colourful species of marine life to see near the surface of these warm waters.During your Cairns overnight boat trip, you’ll visit incredible snorkel sites that show you the best treasures of the reef, glimpsing beautiful fish, corals, turtles and more. At night, take part in our exhilarating Sharks in the Dark experience at no extra cost.