[2] The park is predominantly maritime, featuring a section of the Strait of Malacca dotted with numerous limestone tower karst islands.

[5] In response to the environmental impacts of mass tourism, Fodor's Travel included Ao Phang Nga National Park in their "No List" for 2018.

'[6] The mountain range within the region, according to geological studies, is believed to have originated in the period spanning from the Cretaceous to the early Tertiary, approximately 136 to 36 million years ago.

Further studies, including the examination of shell fossils in caves and on islands within Phang Nga Bay, indicate significant fluctuations in sea levels.

[7] This ecosystem plays a crucial role in the coastal environment, serving as a natural barrier against storms and as a vital breeding ground for various marine species.

Beyond the mangroves, the park's islands support tropical rainforests with species such as Hopea ferrea, the pea plant Parkia timoriana, and Acacia catechu, the mulberry tree Artocarpus lacucha, the Clusia tree Garcinia cowa and Morinda coreia, and on more calcareous soil Leucocasia gigantea, Pandanus monotheca, and Cycas ingas.

[7] Birdlife in the park includes the brahminy kite, pacific reef heron, white-bellied sea eagle, various species of kingfishers, the asian dowitcher, and the edible-nest swiftlet.