Koh Rok (Ko Rok Nok & Ko Rok Nai)
Twin uninhabited islands with white-sand beaches and some of the clearest water and healthiest shallow coral in the area; a premier snorkelling and diving stop with turtles and reef fish.
- Category
- Diving & Snorkeling
- Entrance fee
- Marine national park fee applies, roughly 400 THB foreign adults as of 2026, usually added to the tour price; confirm locally
- Hours
- Daylight, day-tour dependent; the marine park closes in the low season (roughly mid-May to mid-Oct)
- Best time
- Nov-Apr; the park is officially closed during the low-season monsoon
- Time needed
- Full-day tour
- Difficulty
- Easy to moderate (open-water snorkelling/swimming)
About Koh Rok (Ko Rok Nok & Ko Rok Nai)
Koh Rok is often rated the best snorkelling day trip you can take from Lanta, and I'd agree it's worth it. These are twin uninhabited islands with white-sand beaches and some of the clearest water and healthiest shallow coral in the area, with turtles and reef fish in the mix. The two islets sit close together, so there's plenty to explore.
It's a full-day speedboat run down south, and the reward is water that lives up to the hype. This is a scenery-and-snorkel day, not a party.
Go early to beat the crowds, because it fills up. Note the marine park closes during the low-season monsoon, so this is a dry-season trip only. The park fee is usually added to your tour price, but confirm locally.
Highlights
- Twin uninhabited islands with white-sand beaches
- Some of the clearest water and healthiest shallow coral in the area
- Turtles and reef fish on the snorkel
- Often rated the best snorkelling day trip from Lanta
Tips
- Go early to beat the crowds
- Dry-season only; the marine park closes during the low-season monsoon
- Full-day speedboat trip, so pack sun protection and water
- The park fee is usually added to the tour price, but confirm locally
How to get there
Speedboat day tour from Saladan pier, roughly 1-1.5 hours each way (~25-30 km south)