Dive Sites Around Koh Lanta
From Koh Lanta, you can explore a variety of dive sites across the Andaman Sea. From shallow reefs and limestone formations to walls, pinnacles, caves and wrecks, there are sites to suit different levels of diving experience.
Where We Dive
We visit these dive sites throughout the season, with destinations varying according to the schedule, weather, sea conditions and the experience level of the group. Have a favourite? Let us know — we'll always do our best to take your request into account.

Koh Haa
Five limestone islands with more than 30 possible dives, offering varied underwater scenery, colourful marine life, caverns and swim-throughs. With sites for different experience levels, Koh Haa is also a popular destination for underwater photography.
Suitable: All levels of diving and snorkeling
Koh Bida
Koh Bida Nok and Koh Bida Nai offer walls, swim-throughs and varied rocky formations. The surrounding reefs are home to a variety of marine life. These sites are especially known for blacktip reef sharks and leopard sharks that can sometimes be spotted around the islands.
Suitable: All levels of diving and snorkeling


Hin Muang & Hin Daeng
Two reefs just 100 metres apart, with steep walls, underwater canyons and drop-offs covered in soft corals and marine life. The dive sites are deeper and strong currents are common, so these sites are best suited to experienced divers with good buoyancy and diving skills.
Suitable: For Advanced divers or higher, no snorkeling

Kled Kaew Wreck
47 m Royal Thai Navy Wreck – a deep wreck dive with plenty of marine life, schools of fish and opportunities to spot smaller macro life. The wreck has developed into an artificial reef, with coral and marine growth covering the structure and providing shelter for a variety of species.
Suitable: For Advanced divers or higher, no snorkelling
Koh Phi Phi
Limestone formations continue beneath the surface around the Phi Phi Islands, creating walls, caves, overhangs and swim-throughs to explore. The variety of dive sites around Phi Phi Don and Phi Phi Ley makes this a destination for divers of different experience levels.
Suitable: All levels of diving and snorkeling

Looking for More Technical Diving?
Beyond recreational diving, OK Club offers cavern, cave and technical diving courses for divers looking to develop new skills, try different equipment configurations and take on a new challenge underwater.
Technical training dives take place at selected sites in the Andaman Sea, the same locations visited on our regular dive trips. Cavern and cave training takes us to the caves around Krabi and Nakhon area, where there is an access to a wider range of cave environments.
Frequently Asked Questions
Which dive site is the best for beginners?
Koh Haa, Koh Bida, Hin Bida and the sites around Phi Phi Islands are all beginner-friendly sites, with calm, clear water and suited for all levels of diving and snorkeling.
What are the best dive sites around Koh Lanta?
Koh Haa, Koh Bida, Phi Phi, Hin Daeng & Hin Muang and Kled Kaew are among the beautiful dive sites we visit. Expect a variety of underwater landscapes, colourful reefs, schools of fish and plenty of marine life to look out for, with something different at each site.
Where can experienced divers go diving from Koh Lanta?
Experienced divers can explore all the dive sites we visit. Our beginner-friendly sites also offer deeper sections, walls and swim-throughs for divers looking for more to explore. Advanced sites such as Hin Daeng & Hin Muang and Kled Kaew Wreck require more experience due to greater depth and stronger currents.
Can I request a specific dive site?
Yes. We always do our best to take into account customer requests when planning trips, although we cannot guarantee a particular destination.
What's the best time of the year to dive around Koh Lanta?
The diving season runs roughly from November to April. Outside this window, there is the monsoon season and diving is happening less often, with stronger winds and weather affecting.
How far are the dive sites from Koh Lanta?
Distances vary by sites. Local islands Koh Haa, Koh Bidas, Hin Bida and Phi Phi Islands are about 35km away and the travel time there is around 40 minutes. Hin Muang Hin Daeng is further away about 70km from Koh Lanta and our speedboat takes us there in about 1h and 10min depending on the sea conditions.
Where can I see sharks when diving from Koh Lanta?
You might see them in all the sites we visit, altough Leopard sharks and black tip reef sharks are commonly spotted around Koh Bidas and Hin Bida.
What's the difference between Hin Muang and Hin Daeng?
They are two reefs, located 100m from each other. Hin Muang (Purple Rock) covered in purple soft corals, and Hin Daeng (Red Rock) in red soft corals.
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