Coral reefs are one of the most productive marine systems in
Thai waters,both in the Andaman Sea and the Gulf of Thailand.In
the Andaman Sea, along the length of the coastline of approximately 700 km ,545 islands span the distance between near-shore
(near mainland) and off-shore areas. Coral reefs are generally
found fringing islands in clear water ,where the shore line is
sheltered from the south west monsoon