Koh Samui & Koh Phangan · Thailand · Pinnacle
Koh Kong Yai
A miniature Sail Rock of small walls and swim-throughs
Photo: Hugo Innes · CC BY 4.0
Koh Kong Yai, also called Rock Point, is a pinnacle on the east tip of Chaloklum Bay on Koh Phangan. It works as a miniature Sail Rock close to shore, with varied topography and plenty of fish, and it is a seasonal site because its visibility varies.
Also known as Ko Kong Yai, Rock Point, Kong Yai, Koh Kong.
Where it is and how deep
9.8031° N, 100.0156° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
The island has varying topography that reaches a maximum of 20 m. Divers work around small walls and through swim-throughs, with scenery and lots of fish around the rock. Visibility and current are unpredictable here, so conditions decide the dive.
Marine life and season
- Reef fish swarms
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Prime | Prime | Prime | Prime | Good | Good | Good | Good | Fair | Fair | Fair | Good |
Season follows Koh Samui & Koh Phangan: January to April has the calmest seas and best visibility; November, when the north-east monsoon can make conditions difficult, is the month to avoid.
Know before you go
- Visibility and current are unpredictable, and the site is seasonal because visibility varies.
Sources
- Koh Kong Yai — ScubaGo
- Local Dive Sites - Koh Phangan — Chaloklum Diving
Photo credits
- A brown-spotted grouper rests on pale sand beside rock and seaweed, half hidden behind a black sea cucumber by Hugo Innes, CC BY 4.0, via Wikimedia Commons
More dive sites in Koh Samui & Koh Phangan
Artificial reef
Four man-made reef units on the floor of Chaloklum Bay
Table corals and barrel sponges straight off the beach
Reef
An artificial coral nursery beside a gentle island reef
Reef
Barracuda and queenfish hunting along a steep island slope
Reef
A drift around a rocky point between two coral bays
Banded sea kraits and great barracudas on a calm reef
Similar dives elsewhere
Pinnacle
Hin Raab South
Koh Chang & Koh Rang · Thailand
Staghorn coral and swarms of small reef fish on a shallow rock
Soft-coral dome from 6 m to a sandy base at 12-18 m
A hundred morays in the rock, sharks on the 24 m plateau
Twin rock islets over boulder coral, overhangs and small walls