Koh Kai /Chicken Island
Protected Area
Hat Noppharat Thara-Mu ko Phi Phi
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 Kai /Chicken Island offers some of Similan Islands's richest diving. Water ranges 29-31°C, warmest April, May, June.
Chicken Island, or Koh Kai as the locals call it, often gets overlooked for its flashier neighbours in the Similans, but we've always found it a solid spot for a chilled-out dive. At a maximum depth of 13 metres, it’s a perfect place to ease back into diving or for those just starting out. You'll find the reef slope gently down, mostly hard corals forming a stable base for the smaller reef fish. Look out for angelfish flitting between the bommies and we often spot cuttlefish here, especially if you take your time to peer into the crevices. It’s a gentle introduction to the Similans' offerings, without the strong currents sometimes found elsewhere.
Typical Koh Kai /Chicken Island Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to Koh Kai /Chicken Island
Dive shops near Koh Kai /Chicken Island
Railay Dive Center
Sea Gypsy Divers
Aqua Vision Diving Center
Poseidon Dive Center
Sawasdee Divers
The Sea Krabi Diving
Reviews for Koh Kai /Chicken Island
Conditions
Ocean conditions, forecast and tides for Koh Kai /Chicken Island
Koh Kai /Chicken Island Ocean Conditions
Monthly averages for Koh Kai /Chicken Island, 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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