At present, if talking about the sea. Many people have different ideas about the sea, both positive and negative aspects. Sometimes people think something beautiful on the blue sea , But the true under the sea was destroyed, which affects the human ecosystem sea creatures are greatly. Application of one to one is the conservation of coral reefs under the sea and tourism together. Many people think that is difficult, but if everyone cooperate and help to preserve these things. We believe that the actions we have caused this thing up will result to us and environment sustainability and for the promotion of tourism and conservation. We can for example place in Thailand who is beautiful don’t lose any nation in the world, It is the Sea Islands in the Andaman Sea , Located in Phuket it is Racha Yai Island, For the beautiful bay both nature and also can be considered is preserve nature, example Kon Kare Bay, La bay and Siam Bay.