1The Great Barrier Reef, Australia
The Great Barrier Reef is the largest coral reef system on Earth and a UNESCO World Heritage Site. It’s a haven for divers and snorkelers, with its vibrant marine life and stunning coral formations. However, rising sea temperatures and ocean acidification are causing widespread coral bleaching and putting the reef’s future in jeopardy. To experience the underwater beauty of the Great Barrier Reef, there’s no time to waste.