Some of the most remarkable sights of Queensland require leaving terra firma. Off its coast sits the Great Barrier Reef, the world's largest coral reef system. Snorkel and scuba among 1,500 resident fish species or sail through the white-sand atolls of the Whitsundays. Back on dry land, the province delivers tropical escapes courtesy of the Daintree Rainforest to the north, rugged Outback to the west and resort-style nightlife along the Gold Coast. Southeast Queensland boasts mountain views and vineyards.