

Best for beginner divers, 12-20m, boat entry, mild current.
Koh Mai Si Lek is a reef site located within Koh Rang National Park, accessible only by boat. The site features depths ranging from 12 to 20 metres, with an average depth of 12 metres, making it suitable for beginner divers. Visibility typically spans 10 to 20 metres, and currents are generally mild, allowing for relaxed navigation. The site is open for both day and night diving, with a typical dive duration of 45 minutes. Water temperatures remain consistent throughout the year, ranging between 28C and 31C. It is recommended to arrange night dives in advance and confirm equipment inclusions with local operators.
11.71447, 102.51008
Night diving here is well worth arranging in advance, as the reef takes on a different character after dark and conditions are generally calm enough for beginners to feel comfortable. Confirm current boat departure times and whether torches are included in any hire package before you book.
Located off the north west coast of Koh Kut, it is a 2 hours boat ride from Koh Chang.
No known hazards
Recorded at this site
Depth
12-20m
Visibility
10-20m
Skill Level
Beginner
Entry
Boat
Boat required
Water Temp
28-31°C
Current
Mild
Typical Dive
45 min
Best Time
Jan, Feb, Mar, Apr, Nov, Dec
Yes, the site is suitable for beginners due to the mild currents and manageable depths.
The reef depths range from 12 to 20 metres, with an average depth of 12 metres.
No, Koh Mai Si Lek is located 1000 metres from shore and requires boat access.
Yes, the site is suitable for both diving and snorkelling activities.
Yes, night diving is available and recommended, though it should be arranged in advance.
Diving at Koh Mai Si Lek in Ko Kood requires the following certifications: Open Water. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Koh Mai Si Lek in Ko Kood. Water temperatures range from 28°C to 31°C.
The best months to visit Koh Mai Si Lek in Ko Kood are January, February, March, April, November, and December. Conditions outside these months can still be good but are less predictable.