Location
 the Andaman sea of Thailand is a National Marine park approximately 15,000 sqkm, and with around 3,500 islands.
In this area you still find lots of rare birds like Hornbills and Fish-Eagles. Most of the smaller islands are not occupied and have plenty coral-sand beaches for swimming.
The Andaman Sea area is famous for its amazing limestone stalactites which have made it world famous. The islands are the remains of hugh coral-blocks.
Throughout the geological splendors are coral reefs and "hongs" chambers above the water (accessible by our dinghy). 

Map or picture can be enlarged.

Port in Phuket

Port in Krabi