No experience needed
Try Scuba
1 day · 2 dives · max 12 m
A shallow training dive first, then a real reef dive with your instructor right beside you.
฿3,000per person
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SSI Diamond Dive Center · Mae Haad, Koh Tao
Family-run since 2014. Patient instructors teach in English, Thai, French and Spanish, from your first breath underwater to Instructor level. We dive 25+ sites around the island.
Our team at the shop replies in person. Your enquiry code is added to your first message.
Prices are per person in Thai baht, with equipment, insurance and pick-up from your accommodation included. Tell us your dates in chat and we'll confirm your spot.
No experience needed
1 day · 2 dives · max 12 m
A shallow training dive first, then a real reef dive with your instructor right beside you.
฿3,000per person
Ask about this courseDetailsMost popular
3 days · pool + 4 ocean dives · to 18 m
This certification lets you dive anywhere in the world, for life. The course covers theory, pool skills and four ocean dives on Koh Tao's reefs.
With 2 nights in a beachfront dorm: ฿9,900
฿9,500per person
Ask about this courseDetailsFor certified divers
2 days · 5 dives · to 30 m
Five adventure dives: deep to 30 m, navigation, buoyancy, a night dive and the HTMS Sattakut wreck.
฿9,000per person
Ask about this courseDetailsFor certified divers
Half day · 2 dives
Join our boat to 25+ sites, including Chumphon Pinnacle, White Rock, the HTMS Sattakut wreck and, on Saturdays, Sail Rock.
from฿1,800per person
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Morning trips head to the deeper pinnacles, afternoon trips to calm, shallower reefs, and we never dive the same site twice in a row.
A granite pinnacle wrapped in huge schools of fish, and Koh Tao's best bet for whale sharks.
The Gulf of Thailand's most famous site, with a vertical chimney you can swim through.
Colourful coral gardens, perfect for training dives and night dives.
Deep granite boulders carpeted in anemones, with big groupers and barracuda.
A former Royal Thai Navy ship, now an artificial reef between 18 and 30 m.



Stay at Scuba Square or WaterMellow, our partner hostels on Mae Haad beach, with comfy dorms, a rooftop, ocean views and a friendly diver crowd. Add nights to your course and we'll arrange it in chat.
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Our team at the shop confirms your course, start date and pick-up.
A small deposit secures your place; the rest is paid at the shop when you arrive.
No. Try Scuba and the Open Water course start from zero. You should be comfortable in water: the Open Water course includes a 200 m swim (any stroke, not timed) and a 10-minute float.
It is one of the easiest active sports to learn. Underwater you are mostly floating, kicking and breathing, and your instructor teaches the equipment and safety skills step by step.
Yes. Junior Explorer starts at age 8, and the (Junior) Open Water course at age 10.
Only if you answer “yes” to a question on the diver medical form. Clinics on Koh Tao can check you and issue a clearance.
Yes. Dive in contact lenses (daily disposables are best) or use a prescription mask. We have a few at the shop, or you can bring your own.
Both follow the same international standards (WRSTC), so an SSI certification is recognized at dive centers worldwide, PADI shops included.
We are in Mae Haad, a short walk from the ferry pier. Pick-up and drop-off from your accommodation is included on courses.
A deposit holds your spot and the balance is paid at the shop. Our team explains the options in chat.
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