

Best for intermediate divers, 5-30m, boat entry, mild current.
Koh Bida Nok is a marine site featuring a combination of reef, wall, and cave topography. Located 56 kilometres from shore, the site requires boat access. Divers and snorkellers can explore depths ranging from 5 to 30 metres, with an average depth of 15 metres. Conditions are generally characterised by mild currents and visibility between 10 and 25 metres. Water temperatures remain consistent throughout the year, typically between 29 and 31 degrees Celsius. The site is suited for intermediate-level divers. Hazards at this location include boat traffic, deep sections, overhead environments, and sharp coral. Guided tours and boat charters are available for those visiting the area.
7.52520, 98.77750
The eastern side of Koh Bida Nok is a common area to find blacktip reef sharks.
Regularly visited by Koh Lanta dive centers via boat.
Recorded at this site
Depth
5-30m
Visibility
10-25m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
29-31°C
Current
Mild
Typical Dive
60 min
Best Time
Year-round
The site is classified as suitable for intermediate-level divers.
The depth ranges from 5 to 30 metres, with an average depth of 15 metres.
No, Koh Bida Nok is located 56 kilometres from shore and requires boat access.
Yes, the site is open to both diving and snorkelling activities.
Hazards include boat traffic, deep water, overhead environments, and sharp coral.
Diving at Koh Bida Nok in Koh Lanta requires the following certifications: Open Water, Cavern. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Koh Bida Nok in Koh Lanta. Water temperatures range from 29°C to 31°C.
The best months to visit Koh Bida Nok in Koh Lanta are January, February, March, April, May, June, July, August, September, October, November, and December. Conditions outside these months can still be good but are less predictable.
Koh Bida Nok in Koh Lanta typically has mild currents that most divers can handle comfortably.
Visibility at Koh Bida Nok in Koh Lanta typically ranges from 10 metres to 25 metres. Conditions vary with weather, tides, and seasons.