
Koh Kood & Koh Mak · Thailand · Reef
Koh Raet
Harlequin sweetlips and humphead parrotfish at the southern end
Area photo: wingwatcher48 · CC0
Koh Raet is a tiny uninhabited island offshore from Klong Yai Kee in the north-west of Koh Kood, with a dive site at either end. The northern end, at 4 to 8 metres, suits beginners, while the southern end allows dives down to 14 metres.
Also known as Ko Reat, Koh Reat.
Where it is and how deep
11.6828° N, 102.5226° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
The northern end of the island sits at 4 to 8 metres, shallow enough to be perfect for beginners. The southern end allows dives down to 14 metres, and this is the place to look for harlequin sweetlips and humphead parrotfish along the reef.
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 | Good | Prime | Prime |
Season follows Koh Kood & Koh Mak: Mid-October to May brings calm seas and the clearest water; July to September turns choppy, with visibility down to 5 m.
Questions divers ask
Which end of Koh Raet suits beginners?+
The northern end, which stays between 4 and 8 metres; the southern end goes down to 14 metres.
Sources
- Koh Kood Diving - Companies, Sites and Prices — Guide to Koh Chang
- Ko Raet (เกาะแรด) — OpenStreetMap
More dive sites in Koh Kood & Koh Mak
Pinnacle
The rock pinnacle off an east-coast fishing village
Pinnacle
Turtles, barracuda and cobia around fan corals
Pinnacle
Caves and swim-throughs in a rock pinnacle off Ao Takian
Reef
Connected to the large Ao Tum coral garden off Ngamkho Beach
Reef
Two shallow reef sites in one bay, also called Anemone Bay
A small sand-ringed island a stone's throw from Koh Rang
Similar dives elsewhere
Shallow coral-block reef the dive tables list as a night dive
A shallow shark nursery reached straight from the beach
Shallow bay under the duck-shaped rock, with no current
Shallow coral bay used for snorkelling and night dives



