The Andaman Sea is a body of water located in the eastern Indian Ocean that is bordered by the western coast of Thailand, as well as the Andaman and Nicobar Islands of India, Myanmar, and the northwestern coast of Malaysia. The sea is known for its clear waters, rich marine life, and beautiful coral reefs, making it a popular destination for scuba diving, snorkeling, and other water sports.

On the Thai side of the Andaman Sea, some popular tourist destinations include Phuket, Krabi, Phi Phi Islands, and Similan Islands. These areas offer a variety of activities such as swimming, sunbathing, island hopping, and exploring the local culture and cuisine. The Andaman Sea is also home to some of Thailand's most beautiful beaches, such as Railay Beach in Krabi and Kata Beach in Phuket.

In addition to its natural beauty and tourist attractions, the Andaman Sea has also played an important role in Thailand's history and economy. The sea has served as a major trade route for centuries, and fishing and aquaculture are important industries in the region.