Discover the best Ko Lanta tours and things to do on this laid-back Andaman island in southern Thailand: snorkel the famous 4 Islands, wade into the Emerald Cave, hop between limestone isles, watch the sunset from a longtail, dive vibrant reefs and wander the atmospheric Old Town. Compare top-rated experiences and plan the perfect trip.



Departures that are under way when the sun sets in the coming weeks — start times checked against the local sunset.
Children can join from a young age and pay less than adults — taken from each operator’s price list.
Whatever brings you to Ko Lanta — world-class museums, the river, or a long lunch — start with the experiences travellers love most.
The landmarks that define the city — and the tickets and tours that get you in, often skipping the line.

Classic snorkel trip.

Hidden lagoon.

Isle to isle.

Golden hour.

Island heritage.

Vibrant reefs.

Island nature.

Andaman island.
Andaman awayClassic snorkel trip.
Koh Muk awayHidden lagoon.
Andaman awayIsle to isle.
Coast awayGolden hour.
Island awayIsland heritage.
Andaman awayVibrant reefs.
Short, straight answers to the questions every Ko Lanta visitor asks before booking.
Calm seas and clear water — the best months.
The dry season for the clearest reefs.
Wetter and quieter, with some tours paused.
December to February is busiest and driest.
Some boat trips stop in the low season.
November to April for calm seas and sun.
The 4 Islands snorkelling trip.
Add island hopping and a sunset cruise.
Add diving and the national park.
The 4 Islands and Emerald Cave.
A trip to Hin Daeng and Koh Haa.
The national park and Old Town.
Boats reach the islands and the Emerald Cave.
Scooters are the easy way along the island.
Tours cover the reefs, islands and park.
The Old Town and beaches are walkable.
Stay on the west-coast beaches.
Thailand uses the baht; carry some cash.
Longtail trips are quieter than speedboats.
Bring a life jacket for the dark tunnel swim.
Book Hin Daeng trips for the best reefs.
The west-coast beaches face the sunset.
Go for lunch at a stilt-house restaurant.
Some tours pair the 4 Islands with the cave.
Snorkelling trips fill up — book ahead.
Cave tours fill up — reserve early.
Boat trips fill up — book ahead.
Dive spots fill up — reserve early.
Sunset sails fill up — book ahead.
December to February is busiest — book far ahead.
Around €30–70 for a 4 Islands snorkelling trip.
About €24+ for an Emerald Cave tour.
Roughly €30–70 for an island-hopping trip.
Around €42+ for a diving trip.
About €39+ for a sunset cruise.
Join group tours to save over private ones.
What's best, how busy it gets, and one booking tip for each time of year.