Our Most Wanted Dive Services
We are the only dive center in Koh Lanta granted with the PADI Green Star Award
In recognition of our dedication to environmentally responsible business practices and our commitment to the conservation of underwater habitats
Join us to dive in Koh Lanta!
Our PADI 5 Star Instructor Development Center is based in Koh Lanta, Thailand, the beautiful island paradise nestled in the Andaman Sea.
We have a beautiful speedboat that will take you to the dive sites quickly and comfortably, and with our late departures, you will have time to relax before your diving day begins. Our groups are small, with a maximum of four divers to a group, so you can be sure to receive the attention you deserve.
We are eco-friendly, and are the recipients of the only PADI Green Star award on Koh Lanta. Our staff use the Green Fins guidelines when diving to ensure we do not harm the beautiful corals and marine life around us. Join us and participate in a Coralwatch survey and learn more about the amazing array of corals.
Diving in Koh Lanta is magical. We strongly believe Koh Haa and Hin Daeng – Hin Muang dive sites are one of the best spots in Thailand to enjoy our passion for the underwater world. So, don´t wait anymore and join us to dive one of the Andaman Sea´s Jewells.
Our Dive Sites
Our most famous local place
Nestled within the Koh Lanta National Park is one of the jewels of the Andaman Sea. It is a collection of six islands – Koh Haa Yai and its five smaller islands.
Koh Bida Nok, Koh Bida Nai, and Hin Bida are the home of a lot of relatively big blacktip reef sharks. Leopard sharks, other of our jewels, are seen on most dives at Hin Bida.
Koh Phi Phi
Wreck, reefs and amazing views
Phi Phi Lei and the outstanding Maya Bay are famous as the setting for the film The Beach. Be ready for a trip around some of the most stunning scenery above and below the sea.
Mantas & Whalesharks!
World-famous diving spots Hin Daeng and Hin Muang are home to huge oceanic mantas, whales harks and many other species of marine life. A “must” for experienced divers.
What our guests say
I got my Open Water Course in Koh Lanta with them. I can’t be happier with the experience. The Hidden Depths staff, the location of the center, the fast boat and the places we went to dive, all 5 stars. Expectations exceeded.
Thank you guys!!!!
In a nutshell: openhearted family with very very professional divers and instructors.
Hidden Depths team doesn‘t push for profits, they love diving & the ocean. Are the people who found „that“ job and you really notice it. All here just pro‘s loving the job. Come here if you want the real „ocean-vibe“, a fast speedboat, breakfast, snacks and lunch included.
At the end I spent about 10 days with hidden depths and would do it again. Hopefully soon again.Merlin H
Are you interested in learning to dive?
Then talk to us about the PADI Open Water course. Are you already qualified and want to expand your diving knowledge? Then find out more about the PADI Advanced Open Water course, PADI Rescue course or PADI specialties. Are you thinking about turning your passion for diving into a career? Then Go Pro with the PADI Divemaster course, PADI Instructor course or Emergency First Responder Instructor course.
Of course, you might just want to dive. If so, then join us for a trip to Koh Haa, Koh Bida, Phi Phi or Hin Daeng and Hin Muang and explore the underwater world with us.