Ko Bida Nok
Protected Area
Krabi 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 - Ko Bida Nok offers some of Similan Islands's richest diving. Water ranges 29-31°C, warmest April, May, June.
Ko Bida Nok in the Similans gives you that classic Andaman Sea vibe. It's a granite boulder site, meaning lots of swim-throughs and gullies to explore, perfect for finding something tucked away. We’ve had good luck spotting dapple coris and those iridescent blue-dash butterflyfish weaving through the crevices here. Keep an eye out for Diana’s hogfish, they're surprisingly bold. The site usually has a gentle current, making it a comfortable drift for most divers.
Nearest Dive Centres to Ko Bida Nok
Dive shops near Ko Bida Nok
Island Divers
Phi Phi Scuba Diving Center
Barakuda Dive Centre
Profun Divers Academy
Sea Frog
Phi Phi Diving
Reviews for Ko Bida Nok
Conditions
Ocean conditions, forecast and tides for Ko Bida Nok
Ko Bida Nok Ocean Conditions
Monthly averages for Ko Bida Nok, 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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