The beautiful tropical islands, together with the nearby Noppharatthara Beach have 390 Sq. km area and belong to Krabi province.

The islands and coastal hills are mostly composed of lime stone and are extension of the limestone mountain range in Phang-nga province. Some of the characteristics of such mountains and islands are their step cliffs, large caves and dwarf trees growing out of the crevices in the rocks, like those in Phang-nga Bay.

At least 23 species of birds have been recorded in park area, including frigate birds, sea eagles, fly catchers, magpie robins, swallows, sterling and various species of gulls and pigeons. Colorful coral and exotic fishes of many different colors and shapes are visible here. Large fishes as blue marlin are occasionally caught.

The island group is composed of two rocky, tree-covered islets, "Phi Phi Don" and "Phi Phi Le". The former, the larger of two which lies in North. is well known for its fine beaches and coral formations around the island and is provided with assortment of accommodation facilities along Ton Sai Bay and Lodalam Bay and at Northern end of the island.

Abut 2 km to South is Phi Phi Le. Contrary to Phi Phi Don, this islet is uninhabited, not only because this is banned, but also because there is no beach around it. Its main point of interest is a large cave about 3.2 Sq, km in size , known as "Viking Cave". It has numerous drawings on the walls resembles Viking ship. It has a ceiling about 10 to 15 m high, which contains many ledges inhabited by thousands of swallows. See around the island is deep and Southern part is full of coral formations and so is favorite diving spot.