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Cruise Australia: The northern parts of the Great Barrier Reef are heaven for divers and snorkellers
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Glass-Bottom Boat Cruises: Day Cruise to Green Island on the Great Barrier Reef and Tour by Semi-Submarine – Departing from Cairns
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Great Barrier Reef, Australia. Glass-Bottom boat off Green Island, a coral cay in the Great Barrier Reef Marine Park, Queensland, Australia Stock Photo - Alamy
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