
Ecotao Lodge
★★★★
★ 9.4/10 (902 reviews)
2.5 km away as the crow flies
Dive centre · Koh Tao · Thailand
5.061 Google reviewsPersonalised one-to-one PADI training led by an instructor with over two decades of experience in the Koh Tao waters.

Located in Koh Tao, Diverholics offers a focused approach to diving in the Gulf of Thailand. The centre is built around a philosophy of personalised learning, moving away from large, impersonal groups to ensure every diver receives the attention required to build genuine confidence underwater.
Whether you are starting your journey with a Discover Scuba Diving session or progressing toward professional levels, the emphasis remains on skill acquisition and ocean awareness. The centre also integrates environmental responsibility into its core, actively working to mitigate plastic pollution in the local marine environment.
The centre is led by Steven Crane, a PADI professional who has been active in the industry since 2002. His extensive experience allows for a highly personalised teaching style, particularly through the centre's signature one-to-one training sessions.
Instruction is conducted in English, catering to the international diving community in Koh Tao. The teaching approach is designed to help divers of all abilities—from those training in shallow reef flats to those pursuing advanced technical skills—to master their buoyancy and navigation in a controlled, supportive manner.
Diverholics offers a comprehensive range of PADI courses. Beginners can start with Discover Scuba Diving or the Scuba Diver course, eventually progressing through Open Water Diver and Adventure Diver.
For those looking to refine specific skills, the centre provides Peak Performance Buoyancy, Enriched Air Diver, Underwater Navigation, and Night Diver courses. More advanced divers can pursue the Deep Diver, Wreck Diver, Sidemount Diver, or DPV Diver Propulsion Vehicle certifications.
The professional pathway is also fully supported, with courses ranging from Rescue Diver to the Divemaster programme. Specialist training such as the Underwater Naturalist and Project A.W.A.R.E Fish ID is also available for those wanting to deepen their biological knowledge.
The centre provides Nitrox for divers looking to extend their bottom times or manage nitrogen loading more effectively. All necessary training and exploration dives can be organised through the centre's shore-based facilities.
For those requiring equipment, a range of rental kit is available to ensure you have the correct tools for your specific dive profile, from regulators to fins and masks.
The reefs around Koh Tao are home to a diverse array of marine life. You will regularly encounter schools of fish including fusiliers, snappers, and various species of jacks and trevallies. Larger pelagics such as reef sharks (Carcharhinus), bull sharks (Carcharhinus leucas), and blacktip reef sharks (Carcharhinus melanopterus) may be seen patrolling the deeper sections of the reef.
In the coral gardens, look for colourful inhabitants like butterflyfish (Chaetodon), angelfish (Pomacanthidae), and parrotfish (Calotomus). The reef structure itself is built upon a foundation of hard corals (Scleractinia), soft corals (Alcyonacea), gorgonians, and various sponges (Porifera), providing a home for many species including moray eels (Muraenidae), triggerfish (Balistidae), and lionfish (Pterois volitans).
Macro enthusiasts will find plenty to observe among the crevices and sandy patches. The area is known for its variety of nudibranchs, shrimps (Caridea), and octopuses (Octopus vulgaris). You can also find smaller creatures such as pipefish, ghost pipefishes, gobies (Gobiidae), and various species of crab (Brachyura) and hermit crabs.
Sea turtles are a frequent sight in these waters, including the green turtle (Chelonia mydas) and the hawksbill turtle (Eretmochelys imbricata). Watch the sandy bottom for blue-spotted stingrays (Batoidea) and other rays that frequent the reef flat.
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★★★★
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Your last day stays dry: no diving in the 18-24 hours before a flight the perfect window to see the destination from another angle.
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Solve island clues, meet locals, and visit viewpoints and beaches across Koh Tao in a team adventure.
from €54
see on Viator ↗
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Ratings and reviews collected by Viator and Tripadvisor.