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Two French tourists die after suffering heart attacks while snorkelling on Australia's Great Barrier Reef
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Bleached coral on the reef while Scuba diving at Huahine island, French Polynesia Stock Photo - Alamy
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Irukandji jellyfish could have caused deaths of tourists on Great Barrier Reef | Australia news | The Guardian
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Big Reefs in Big Trouble: New Research Tracks a 50 Percent Decline in Living Coral Since the 1950s - Inside Climate News
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