Nai Harn

# Nai Harn Dive Site, Phuket

Nai Harn is a premier diving destination off the coast of Phuket in southern Thailand’s Andaman Sea. This accessible site suits divers of all experience levels, with depths ranging from 5 to 25 meters. The underwater landscape features impressive coral formations, rocky outcrops, and sandy patches teeming with vibrant marine life.

Divers encounter schools of fusiliers, jacks, and barracuda, alongside colorful reef fish including angelfish and parrotfish. Larger pelagic species such as leopard sharks and groupers frequently patrol the area. Macro enthusiasts appreciate abundant nudibranchs, shrimp, and crustaceans hiding among the corals.

Visibility typically ranges from 10 to 20 meters, depending on seasonal conditions. The site’s proximity to Phuket makes it ideal for day trips and liveaboard excursions. Nai Harn’s sheltered bay location provides calm waters during peak diving season, while its rich biodiversity and manageable depths make it excellent for both recreational divers and those seeking underwater photography opportunities in the Indian Ocean.

🐠 Marine Life at This Dive Site

Black-barred Halfbeak Hemiramphus far davigrapsus

Phuket Pit Viper Trimeresurus phuketensis muangpaisuetrong

Peacock Damsel Pomacentrus pavo jiayuann

Domino Nudibranch Phyllidiella zeylanica okiedivenut

Costate Nerite Nerita costata pavelkornev

Downing's Shrimpgoby Amblyeleotris downingi jiayuann

Species data from iNaturalist (CC BY-NC)