Koh Tao, a breathtaking island in Thailand known for its pristine white sand beaches, tropical coral reefs and hilltop views, is any backpacker's dream - but it has a sinister reputation.

Long-tail boats wait to take divers to explore coral reefs and ocean life off the island Ko Tao in Surat Thani Province, Thailand. Tourism authorities are encouraging visitors to leave “only ...

Taking a global perspective to find a sustainable future for coral reef and island ecosystems Palau and other Pacific states have abundant coral ecosystems and some of the world’s richest biodiversity ...