The Geology That Created Paradise
Phang Nga Bay is a 400 square kilometre bay located between Phuket and the Thai mainland, within the Ao Phang Nga National Park. What makes it extraordinary is its geology: over 40 massive limestone karsts — some over 300 metres tall — rise vertically from the calm, shallow emerald-green water.
These karsts were formed over millions of years as ancient coral reefs were uplifted by tectonic forces and then sculpted by rain and sea erosion into their current dramatic shapes. The result is a landscape unlike anywhere else on Earth — towering stone pillars draped in tropical vegetation, their bases undercut by tidal erosion to create caves, arches, and hidden lagoons.
The bay's shallow, sheltered water (rarely more than 10 metres deep) creates an almost lake-like calm, making it accessible even for non-swimmers and young children. This geological wonder earned the national park its place on Thailand's tentative list for UNESCO World Heritage status.

