Koh Chang & Koh Rang · Thailand · Pinnacle
Secret Reef
A small pinnacle beside Blueberry Hill and Hin Rap
Secret Reef is a small pinnacle south of Koh Chang, close to Blueberry Hill and Hin Rap. It rises from a sandy bottom at about 15 m and suits divers fresh from their first course, as long as they keep clear of the coral growing on the seabed around its base.
Where it is and how deep
11.9057° N, 102.3172° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
The dive goes around a single small pinnacle whose base meets the sand at about 15 m. Coral grows on the bottom around the rock, so buoyancy near the seabed matters more here than depth.
Marine life and season
The sources we used don't single out particular species here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Prime | Prime | Prime | Prime | Good | Fair | Fair | Fair | Fair | Fair | Good | Prime |
Season follows Koh Chang & Koh Rang: Diving runs year-round; November to May brings calm seas and the clearest water, and the June to October monsoon brings wind, waves and lower visibility.
Know before you go
- Coral grows on the bottom around the pinnacle, so divers need to stay clear of it near the sand.
Sources
- Secret Reef dive site — ScubaGo
More dive sites in Koh Chang & Koh Rang
Pinnacle
A coral-capped pinnacle top only about 3 m below the surface
Pinnacle
A rock pile off Koh Rang that almost breaks the surface
Pinnacle
A cluster of coral-covered rock pinnacles, among Koh Chang's main dives
Pinnacle
Staghorn coral and swarms of small reef fish on a shallow rock
Whale sharks around the hull between January and April
Reef
Turtles and stingrays over shallow hard coral
Three rock pinnacles rising together from the seabed
Similar dives elsewhere
A hundred morays in the rock, sharks on the 24 m plateau
Twin rock islets over boulder coral, overhangs and small walls
A coral-covered pinnacle east of the Bidas, rarely on the schedule
Caves and swim-throughs in a rock pinnacle off Ao Takian