Koh Rin
Best time to dive
January to December; November to April
What you might see
- BarracudaPossible
- Moray eelLikely
- NudibranchLikely
- Sea turtleLikely
- Whale sharkPossible
Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.
Certification & difficulty
Advanced Open Water - advanced conditions (currents/depth); dive within your training.
Snorkelling
Snorkel-friendly - Yes - shallow reef shelf and anemone garden area suit snorkeling from the boat
Safety notes
Localized strong currents at the cape tip and channel, boat traffic requiring SMB use, rocky ledges/drop-offs at depth
Permits & fees
Samaesan/Koh Rin lies within the Sattahip naval exercise area and near Mu Ko Samae San - trips run through licensed operators with boat clearance; some operators note a small local park/area fee (~100 THB), not separately confirmed for Koh Rin
Permits and operators change - confirm before booking.
Location
Nearest hub: Sattahip (Samaesan)
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.

