The National Park consists of the Similan Islands is the ground. He steep granite rocks, sandy beaches, characteristic shapes of the Islands coast looks dented because of the clutter, is located in the sea outside the influence of erosion from the waves of the sea directly. On the beach there is no soil or sand Lane, it is seen on the white beaches. The sand particles are small, beautiful detail. The Summit will be the part he dominant. Peak with a height of 244 m above sea level. Some have flat island surrounded by coral reefs and sand dunes.