Koh Phi Phi, regarded as one of the most beautiful islands in Thailand, is concerned about its dying coral reefs.
The island, known for its marine life and a top tourism destination for more than 20 years, is seeking help from the government and tourism operators to look after its natural resources.
Koh Phi Phi and nearby islands welcome more than 1.4 million tourists a year, according to the Tourism Council of Thailand (TCT).