Koh Yippon

An island and rock group at the northern end of Mu Ko Ang Thong Marine Park, one of the park's most visited dive and snorkel areas on day trips from Koh Samui and Koh Tao. Operators describe shallow swim-throughs and a roughly 20 m long cave across the island's eastern tip that is fully submerged only at high tide, plus soft corals and sea fans. Fusiliers, yellowtail barracuda, snapper, blue-spotted stingrays, banded sea snakes, white-eyed morays and cuttlefish are mentioned, with a resident turtle seen now and then.

Facts

Region: Thailand – Koh Tao & Samui
Area: Koh Samui & Ang Thong
Depth: 18 m
Level: beginner
Current: low
Type: reef, cave
Coordinates: 9.8, 99.7167 (approximate)
Highlights: swim-throughs, soft coral, sea fans, fusilier, yellowtail barracuda, blue-spotted stingray, sea snake, moray eel, cuttlefish, nudibranchs
Unverified: Position and depth: no precise GPS – sources only say 'northern end of Ang Thong'; the point follows a minute-precision Thai Wreck Diver entry ('Hin Yippon Lek'); max depth given as 18, 20 or 25 m.
Tips: Inside the national park – park entry fee and the ~Nov–mid-Dec closure apply; check current dates and fees. The cave needs good buoyancy and the right tide.

Koh Yippon

Facts

Sources