Phang Nga Bay is a 400 km² bay in the Strait of Malacca between the island of Phuket and the mainland of the Andaman sea of south-west of Thailand since 1981, an extensive section of the bay has been protected as the Ao Phang Nga National Park
Phang Nga Bay is a great place for boating. The interesting limestone cliffs create a picturesque backdrop and there are many safe places to anchor.
Limestone is calcium carbonate, which is generally white. Over millions of years, the skeletons from a constant rain of marine organisms, plus the chemical precipitation of yet more calcium carbonate build thick layers of sediment. Eventually, the heat and pressure of their own weight turn these strata, hundreds of meters thick, to stone.
A variety of geological forces have then fractured the limestone beds and pushed up the 40 steep-sided islands that provide the exotic scenery for which this shallow bay is noted. Mineral oxides from various sources paint the vari-coloured streaks that characterise the cliffs of Phang Nga Bay.
There are 42 islands, the most popular islands to visit are: Khao Phing Kan, Ko Panyi, Ko Yao Yai (island), Ko Panak, Koh Hong