For the tourism who loves snorkeling and scuba diving, they can’t refuse “Great Barrier Reef” which is heaven of visitor. It’s one of Australia’s most remarkable natural gifts. It’s contains an abundance of marine life and many type of coral and species of fish. And its longest and biggest coral reef in the world. So Great Barrier Reef is one of the seven wonder of the natural world and gets the word heritage list from UNESCO. But now this coral reef will be damaged and extinct from natural disaster and human activity whether there are; First, climate change which more high temperate in the sea.