Koh Doc Mai
Protected Area
Phuket Environmental Protected Area
Why dive here
With 173+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Koh Doc Mai offers some of Similan Islands's richest diving. Water ranges 29-31°C, warmest April, May, June.
Koh Doc Mai, or Flower Island, stands as a prominent limestone outcrop between Phuket and the Similans. We often hit it when transiting, and it rarely disappoints. The walls drop away dramatically on three sides, absolutely plastered with colourful soft corals that live up to the island's name. It's a fantastic place for poking into cracks and crevices; we regularly spot moray eels, octopus, and the occasional ornate ghost pipefish tucked away. The site suits divers who enjoy a slower pace, keen to scour every inch of the wall for macro life, though we've certainly seen leopard sharks resting on the sandy bottom too. We'd suggest going early to avoid the crowds from day boats.
Nearest Dive Centres to Koh Doc Mai
Dive shops near Koh Doc Mai
Devils Divers
The Phuket Best Friend - Phi Phi excursion and scuba diving
HKT Kids Dive Club
Thailand Aggressor
Underwater Way
Captain Flint DC
Reviews for Koh Doc Mai
Conditions
Ocean conditions, forecast and tides for Koh Doc Mai
Koh Doc Mai Ocean Conditions
Monthly averages for Koh Doc Mai, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (8.1, 98.3) (6km away)
October Averages
Sea Temperature
30°C
85°F · Range: 28.7–30.4°C
Current Speed
5.1 cm/s
Direction: S (191.3°)
Salinity
29.75 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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