Koh Chi

# Koh Chi Dive Site

Koh Chi, located off Koh Surin in Phang Nga’s Andaman Sea, is an excellent dive destination suitable for intermediate divers. This site features dramatic underwater topography with rocky outcrops and coral-covered boulders descending to depths of 12-40 meters, making it accessible for various skill levels.

Divers encounter vibrant hard and soft corals adorning the reef structure, creating a colorful underwater landscape. Marine life is abundant, including reef fish schools, groupers, snappers, sweetlips, and occasional reef sharks. Barracuda and trevally frequently patrol the area, while smaller species like nudibranchs and crustaceans populate the coral crevices.

The site experiences moderate currents, which enhance nutrient flow and attract larger pelagic species. Visibility typically ranges from 10-20 meters, depending on seasonal conditions. Koh Chi’s combination of pristine coral formations, diverse marine biodiversity, and manageable depths make it a popular choice for divers exploring Thailand’s Andaman Sea diving circuit.

🐠 Marine Life at This Dive Site

Mimic Surgeonfish Acanthurus tristis pailinr

Greenhead Parrotfish Chlorurus troschelii watsaisaeng

Red Saddleback Anemonefish Amphiprion ephippium alphaj16

Gymnodoris striata Gymnodoris striata euryale

Indian Sailfin Tang Zebrasoma desjardinii charleyhesse

Yellowfin Surgeonfish Acanthurus xanthopterus wingwatcher48

Species data from iNaturalist (CC BY-NC)