Welcome to Dive & Relax

Avoid the crowds on larger dive boats: Dive trips and scuba courses on Koh Lanta in very small groups with a focus on great service, personal attention, safety and fun.

Departing from the south end of Long Beach each morning at 9am, our two speed boats carry a maximum of 10 divers each to some of the best diving sites in Thailand... Read More

Journey times to Koh Haa are just 25 - 30 minutes from our dive shop @ Lanta Castaway Beach Resort, and as little as 60 - 70 minutes to the spectacular diving sites of Hin Daeng & Hin Muang.

Travel in style from Koh Lanta to some of the Andaman Sea's top dive sites on our fast boats, enjoying short journey times and an early afternoon return to Koh Lanta with plenty of time to explore the island or relax on the beach...

Explore Thailand's Best Dive Sites

Small Groups and Fast Boats

Koh Lanta is a scuba diving paradise, home to some of Thailand’s best diving sites, most spectacular islands, healthiest coral reefs, and a huge diversity of marine life.

Here on Lanta, our unrivaled location means that not only can we go diving in the Mu Koh Lanta Marine Park, we also have easy access to the super dive sites in the Mu Koh Phi Phi Marine Park.

We've created an extensive Lanta Marine Life Guide with photos and descriptions of hundreds of species of fish, corals, and other amazing creatures you can expect to see while diving with us here around Koh Lanta.

After returning from a diving trip, our staff love to spend time with our guests, logging the dives and sharing our knowledge of the wonderful marine life spotted during your dives.

Scuba Courses & Introduction Dives

Learn to Dive on Koh Lanta

Anyone can try scuba diving! Discover the amazing underwater world and the fantastic tropical marine life of the Andaman Sea.

We teach the internationally recognised Open Water Diver courses several languages, with group sizes of just 2 or 3 students with each diving instructor (max 3).

Not ready to get certified? You can try our 1-day, 2-dive Discover Scuba Diving experience with an instructor to a maximum of 12 m.

If you're already certified Open Water Diver (or equivalent), you can complete the Advanced Adventurer course here on Koh Lanta in just 3 days (6 dives). Dive deeper, improve your buoyancy and air consumption, and prepare for even more exciting scuba diving adventures around the world.

• Discover Scuba Diving
• Open Water Course
• Scuba Skills Refresher
• Enriched Air Nitrox
• Deep Diver Specialty
• Perfect Buoyancy Specialty
• Navigation Specialty
• Advanced Adventurer
• React Right - First Aid & CPR
• Diver Stress & Rescue
• Diving with Kids

We teach a wide range of SSI Scuba Courses here on Lanta.

Snorkel Trips

Aquatic Adventure on the Surface

If you're not yet ready to go diving around Koh Lanta, we also offer guided snorkel trips from Koh Lanta in very small groups to the same superb locations only normally visited by our diving guests.

Here at Dive & Relax on Koh Lanta, all our snorkel guides are also professional divers, who love to show non divers the wonderful coral reefs and thriving marine life around Koh Lanta.

Once you've had a chance to experience our great personal service, coral reefs, and wonderful staff, you might just be tempted to try Discover Scuba Diving here on Lanta.

Koh Lanta Private Speedboat Charter

Exclusive Personal Trips

For the perfect Koh Lanta diving or snorkel trip, you can also privately charter a speed boat on Koh Lanta to some of the most beautiful islands, beaches, and coral reefs around Koh Lanta.

The ultimate way to avoid the crowds; design your own custom Lanta diving or snorkeling trip, decide your activities, choose the destination, and let our fantastic staff take care of you on a truly memorable day out for you and your family.

Koh Lanta Archipelago

An Island Paradise

Koh Lanta isn't just a diving destination, visitors also love to explore and enjoy the island itself. Despite being one of Thailand's largest islands, Koh Lanta remains relatively unknown, often overlooked by the vast majority of visitors to Thailand.

At approximately 25 km long and 4 km wide, the more laid back island of Koh Lanta has avoided the crowds and mass-market tourism of places like Phuket, Phi Phi, Ao Nang or Koh Tao.

With amazing sunsets, long sandy beaches, and great transport links, not only is it easy to get to Koh Lanta, you can also use Koh Lanta as a base to explore Krabi, Ao Nang, Koh Jum, Koh Phi Phi, Koh Mook, Koh Kradan, Koh Lipe and the quieter southern islands.

The best time to visit us for diving here at Dive & Relax on Koh Lanta is determined by the weather and wind direction, with the westerly prevailing winds from October to May bring the high season weather, and the easterly monsoon winds from June to early October bring the low season storms.

What do Our Customers Say?

Read some of the reviews and comments left on TripAdvisor by our previous divers and snorkelers:

• Kate S

  Small groups, wonderful service, great food, highly recommended!

  We spent a morning with Dive & Relax, visiting Koh Ha for a snorkelling trip with our 2 girls (11 & 14). From the moment we made contact with D&R, we felt assured they were the right company for us to go with. They were brilliant in every sense: Meeting us to fit the snorkelling gear and run through initial questions / collecting us from our accommodation / safety briefing before we set off / friendly and professional team on the boat etc. As well as the top notch service, we opted for D&R due to the small group size. We had our own snorkelling guide (Steffi) for the trip - with just one other customer. Steffi was fantastic - teaching us all about the sea life, checking we were ok, but also leaving us to explore what we wanted; the balance was perfect. We were with a small diving group on the boat, and which worked well. The visibility was great on our trip - we saw abundant fish in every colour imaginable. Nemo, porcupine fish, parrot fish, angel fish all sorts! I would highly recommend Dive & Relax and wouldn’t hesitate to use them again.

  Apr 2024

• RikvbGent

  Great diving school

  We had a terrific experience with Tino from dive and relax. Made 8 dives with him to the major dive sites. Well organised, fast boats, very small groups with personal attention. Good equipment and food. The owner Cameron is very professional and handles your enquiries in a smooth way. Stayed in the Resort lanta castaway where the diving school is based: very convenient

  Apr 2024

• Lawrence

  Incredible diving with Dive & Relax

  Having dived for almost 10 years, Dive and Relax is arguably the best dive operator I have dived with so far! Incredible service and each staff member clearly has a great passion for marine life. We did not bump into other dive groups and had a true sense of remoteness. The marine life is stunning and the corals are in pristine condition. After completing 2 dives at Koh Rok, we went back to Koh Lanta but on the way, we came across a Bryde whale! The captain immediately reversed the speed boat and we ended up having a close encounter for 20 minutes (the whale swam under the boat!!), something most dive operators wouldn’t do. Highly recommended!

  Apr 2024

• George H

  Professional, safe and fun. Overall a brilliant experience.

  We dived at Koh Haa in March with Dive & Relax and it was a fantastic experience. Cameron and the team are thorough, knowledgable and friendly, everything you want from a Dive Shop. Our instructor Oh was also wonderful, great fun, really knows her stuff and made us feel super safe and well looked after too. Overall probably the best dive shop we've dived with since we started diving over ten years ago. The reef around Koh Haa was also seemed in great condition with some lovely unusual soft and hard corals and the sheer amount of fish was super impressive. There was so much to see. Can't wait to dive with them again in the future. Would highly recommend.

  Apr 2024

• Pierre C

  Perfect Time in a perfect club

  A diving club where the meaning of the word relax has its full meaning. Very professional and very pleasant instructors. Fast boats to rush to the dive sites and return at the start of the afternoon to enjoy Koh Lanta. Thanks to Cameron and his team for their welcome, their advice and the beautiful dives.

  Mar 2024

• Simon Louis

  "Dive & Relax" - What more could you want on holiday!

  I was "allowed" to dive with Dive & Relax on two days. The diving spots were really good! Absolutely recommendable diving school! Professional team (from Camero, the diving instructors and the boat crew!) Good organization. Good advice.

  Mar 2024

• Tom L

  Very nice experience !

  Very professional, efficient and yet relaxing. The dive site was very nice with lots of sea life, and our dive guide Stefi was a joy to dive with. Thank you !

  Mar 2024

• Fossie

  THE best diving center !

  Where to start? The best diving center ! Professional, excellent service and accompaniment. I have Advance Open Water since 45 years and dive rarely. I felt in COMPLETE security with The team. Thank you to Cameron’s team and specifically to Oh, my instructor and body during those 2 days (4 dives). Sharks, turtle, squid, moray, harlequin schrimp, … and so much more. They have speed boat and they know where to go.

  Mar 2024

• Britta M

  Best dive in Krabi!

  We had planned to stay only 3 days and then came back for another 3 days because we enjoyed the dive sites so much and the team is excellent! We felt very safe and very well taken care of. We will definitely be back!

  Feb 2024

• Martina Rathke

  Awsome experience - hardly improvable

  This is probably one of the best dive centers we have been booking over the past 10 years. It starts with a very elaborate reply on initial contact, which had Cameron explain any possible questions on how to enjoy diving around Ko Lanta with them. We personally enjoyed the absolutely easy settling of the down payment and the rest of the bill during the stay via WISE (formally WiseTransfer) - no fumbling around with cash or complicated money transfers. The only cash we used was on tiping of the Dive Leads. D&R offers a complimentary pickup service, which we only used on the last of our four dive days. Initially, we stayed only some 200m off the dive center at LAILA PLACE 1415, and had planned to relocate to Ko Phi Phi for another section of our dive trip, but... after hearing how touristy KPP is AND how much pleasure the diving with the D&R crew had been, we canceled KPP completely, just switched hotels on KL and extended our stay with Cameron for more diving! Our dive leaders were Toni from ARG and Oh from THA ... both did a great job taking care of us before, during and after the dive trips. We had brought our own dive equipment and D&G took care of loading it on the self-owned boats, arranging for tanks and rinsing the equi after the day of diving. A standard day starts "early" depending on the day's target area and its distance to the dive base - either around 0710h or 0810h for predive briefing with your dive leader of the day. Once everybody is ready, it is a short walk on the beach to reach deep enough water (tides) to embark the speedboat(s) that take you to the dive spots. They have a weekly schedule that covers all locations periodically, adding to that alternates should conditions at the original location don't permit for a great experience on that given day. One day trip equals two dives, each planned one one tank between 40 to 60min - depending on planned depth / currents, they have plenty of bottled water, soda, and fruit for everybody. A warm lunch will be served during the surface interval between dives, and it is yummy, authentic thai food .. mildly seasoned, thankfully 🙂 Well, enough said ... it was an awesome experience, and should we decide to "do" Ko Lanta again, it will definitely be with Cameron and Dive & Relax! Thanks for your outstanding services!!

  Feb 2024