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Koh Tun

เกาะตูน

Quiet Island Reef

Beginner

A small island with a basic reef offering quiet diving away from the more popular sites.

Depth Range

8–18m

Site Type

reef

Koh Chang & Koh Rang

Visibility

5–15m

26–30°C

Getting There

35 min boat from Koh Chang

Southern Koh Chang area

Live 7-Day Conditions — Koh Tun
SST ~30.2°C
Thu
2 Jul
44
marginal
19km/h SW
0.7m
Fri
3 Jul
46
marginal
22km/h SW
0.8m
Sat
4 Jul
47
marginal
23km/h SW
0.7m
Sun
5 Jul
47
marginal
19km/h SW
0.6m
Mon
6 Jul
55
marginal
21km/h SW
0.5m
Tue
7 Jul
47
marginal
17km/h SW
0.6m
Wed
8 Jul
47
marginal
22km/h SW
0.7m

Marine Life

Reef Fish Groupers Nudibranchs

Notable Features

  • Very quiet site
  • Peaceful diving

Best Time to Visit

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Peak Good Now

About Koh Tun

Koh Tun is a small island south of Koh Chang with a fringing reef suitable for all levels. The site rarely gets visited, offering a peaceful diving experience with typical reef fish and occasional macro finds.

Tips

A quiet alternative when other sites are busy.

Experience Required

All levels.

Location

GPS: 12.0000°N, 102.3700°E

Learn to Freedive in the Gulf of Thailand

Sites like Koh Tun are what the Gulf has to offer. Get certified with us on Koh Samui — train at Sail Rock and Koh Tao in groups of no more than 3, skip the Koh Tao ferry, and dive the best of the region.

New to freediving? Get the free beginner's guide first.

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