Lampi Island is generally hilly and rises steeply from sea level to 270 meters. Much of the coast is rocky, although there are a number of sandy beaches, bays, and inlets.
The Park boasts of large caves and plenty of freshwater sources in the island, as well as major coral formations around the smaller islands. The park measures 20,484 hectares in Boatpyin Township of Taninthayi Division, Myanmar.