53 places, sorted by type and area.
Koh Tao certifies more divers than almost anywhere in the world, with dozens of dive schools around the island. Here is every dive centre and freediving school we know, sorted by type and area: compare, then visit a few before you book.
A PADI 5-Star IDC dive centre on the north end of Sairee Beach, Koh Tao: courses for every level, fun dives and small groups, taught in seven languages.
Jamahkiri Diving Club is the private dive club of Jamahkiri Dive Resort & Spa on Koh Tao: small classes, a training pool and boats leaving from the resort pier.
A friendly dive school two minutes from Mae Haad pier: small groups of four, courses from beginner to pro, fun dives and training at Jamahkiri resort.
Courses in French with an all French-speaking team, groups of four, from first dive to instructor, in Mae Haad and Chalok.
A PADI 5-Star Career Development Center in Mae Haad, Koh Tao: courses for all levels, fun dives and professional training.
PADI Career Development Centre on the southern beach at Chalok, with small-group courses, fun dives, rooms, a pool and a beachfront restaurant.
SSI dive resort on the beach at Chalok Baan Kao run by an Italian team, teaching in six languages, with rooms, restaurant, bar and pool.
Luxury resort on the cliffs above Shark Bay with a spa, private villas, an in-house dive club and Thai and Western cuisine.
PADI-listed dive centre on Koh Tao, appearing in PADI's centre finder for Sairee-area courses.
One of the island's longest-running schools, on Sairee Beach. SSI-led with PADI options, plus instructor training, freediving and a technical diving arm.
PADI dive centre offering fun dives and courses from beginner level, including freediving courses.
PADI 5 Star dive resort on Sairee, appearing in dive directories and the PADI centre finder.
PADI school on Sairee Beach focused on instructor and divemaster training, with technical diving, videography and boat-handling courses.
PADI-listed dive centre on Koh Tao offering half-day dive trips and courses.
Small-group dive school using the IDD system alongside PADI and SSI courses, groups of up to four.
Dive school on Sairee Beach running courses from try dives to instructor level.
Sairee dive centre appearing in dive-directory listings; courses and fun dives.
Sairee dive school appearing in island dive-centre lists, offering courses and fun dives.
Sairee dive school featured in island dive-centre lists and recommendations.
Sairee dive centre with listings in SSI and European dive directories and recent reviews.
Sairee Beach school with RAID as its main agency, also teaching SSI and PADI. Runs divemaster programmes and marine conservation activities.
PADI-listed dive centre attached to the Simple Life resort on Sairee Beach, with courses and fun diving.
SSI-listed dive centre on Sairee Beach offering courses and fun dives.
Dive centre named on the map; no current operating evidence found online.
PADI 5 Star instructor-development dive resort at Chalok, covering beginner to instructor courses, technical diving and freediving.
Dive school at Tanote Bay teaching under CMAS and SSI with an environmental focus, in German, English, French and Thai.
PADI resort near Mae Haad, known for its wide course range including freediving, technical diving, underwater photography, conservation courses and instructor training.
Small-group dive operator with two speedboats for reaching quieter sites, flexible scheduling and half-day try dives. Also packages other island activities.
Dive centre with an on-site resort at Chalok Baan Kao, listed on booking sites and dive directories.
Name read from the map; no matching operator could be confirmed.
Dive school named on the map; directory listings are unclear on its location.
Dive centre with its own website and dive-directory listings, running courses and fun dives.
PADI 5 Star centre at Chalok offering Discover Scuba, Open Water, Advanced and dive trips.
SSI school with resident marine biologists and coral restoration work; also RAID freediving combined with yoga.
PADI-listed dive centre that pairs diving with yoga, set in Chalok Baan Kao.
Name read from the map; no matching Koh Tao dive operator could be confirmed online.
Name read from the map; no matching Koh Tao dive operator could be found online.
Dive centre listed with SSI and regional directories, offering courses and fun dives from Mae Haad.
PADI-listed dive centre on Koh Tao offering courses and fun dives.
Daily yoga classes in a sea-view shala, sunrise yoga, yin and sound healing, breathwork and ice baths, freediving, retreats and a 200-hour teacher training.
Apnea Total offers personalized freediving courses on Koh Tao, guided by experienced instructors in the calm, clear waters off Sairee Beach.
Freediving school named on the Sairee part of the map.
Technical diving arm of Big Blue Diving, offering TDI courses including extended range, advanced nitrox and decompression, and advanced wreck.
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