Scuba diving is a form of underwater diving in which a diver uses a self contained underwater breathing apparatus. Most of the scuba diving destinations are on the Andaman Sea on the South East coast of Thailand. The most famous ones are the outstanding Similan Islands with truly excellent diving. Scuba Diving in the Similan National park is the best diving in Thailand and one of the best in the world. There are numerous excellent dive sites. Such as fauna Elephant head rock and Christmas point.