Reefwander
A single grey-green fish covered in pale spots and squiggles swims over a rocky bottom with tufts of brown algae — Koh Kood & Koh Mak.

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

Depth profile of Koh Raet: typical dive 4–14 m (13–46 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit4 m14 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

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.

Month-by-month season rating for Koh Raet
JanFebMarAprMayJunJulAugSepOctNovDec
PrimePrimePrimePrimeGoodFairFairFairFairGoodPrimePrime

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

  1. Koh Kood Diving - Companies, Sites and Prices — Guide to Koh Chang
  2. Ko Raet (เกาะแรด) — OpenStreetMap

More dive sites in Koh Kood & Koh Mak

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The rock pinnacle off an east-coast fishing village

to 14 mbeginner

Pinnacle

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Pinnacle

Caves and swim-throughs in a rock pinnacle off Ao Takian

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Connected to the large Ao Tum coral garden off Ngamkho Beach

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Two shallow reef sites in one bay, also called Anemone Bay

to 12 mbeginner

A small sand-ringed island a stone's throw from Koh Rang

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