Koh Lanta offers some of the best diving on the west coast of Thailand. Boasting vibrant reefs, deep drop-offs and alluring caves, Koh Lanta is a hotspot for scuba divers looking for adventure.
Expect to see the usual suspects on the colorful reefs. Gorgonian sea fans sway in the light currents and pinnacles are swarmed with carpets of anemone. Keep checking the seabed in sandy areas where leopard sharks are resting. Blacktip reef sharks, hawksbill turtles and many varieties of nudibranch, shrimp, pipefish and seahorses hang around keeping macro lovers happy. Scorpion and stone fish hide in the reefs while lionfish and mantis shrimp scurry around.
Diving in Koh Lanta is known for whale shark and manta ray sightings so be sure to keep one eye out in the blue.
Koh Lanta enjoys warm waters filled with marine life throughout the year with sea temperatures averaging around 84°F/29°C. February-May is when the seas are at their flattest and dive conditions are calm.
Depending on the season you can expect anything between 15-40m visibility. When visibility is reduced from the plankton in the water, big fish appear. Manta rays and whale sharks visit deeper pinnacles annually. The best time of year to spot them is from February-April. Nature’s calendar doesn’t always follow the rules though so these beauties can be spotted at any time of the year.
Whatever time you choose to dive in Koh Lanta, you are sure to be enthralled by the rich and varied underwater world - it's unmissable.
Find local PADI dive shops and explore the top dive sites with our map.
The Koh Lanta archipelago is located off the west coast of Thailand by the Andaman Coast and is best known for its coral-fringed beaches, mangroves, limestone outcrops and rainforests.
Krabi Airport is the nearest airport to Koh Lanta. There are numerous flights to Krabi Airport leaving from Bangkok, Chiang Mai, Singapore, Kuala Lumpur, Hong Kong and even long haul connections from Europe.
It’s fairly easy to get to Koh Lanta as the island is accessible by speedboat, minivan and ferry. The island is connected to the mainland by a car ferry and there are also regular ferries from Krabi (1-2h), Koh Phi Phi (1-2h), and Phuket (2-4h).
Once on Koh Lanta there are two main roads that run the length of the east and west coasts and are interconnected by four smaller roads. Taxis are plentiful and the adventurous are known to hire a scooter to explore the island.