World's cheapest OW certification + calm year-round waters
33 courses (PADI & SSI) bookable through iDive partner schools · zero agency fee.
Your first breath underwater — no certification or experience needed.
Your first breath underwater — no certification or experience needed.
Build-your-own first certified dive — pool training then the open sea.
Build-your-own first certified dive — pool training then the open sea.
A faster entry-level certification — dive to 12m with a professional.
A faster entry-level certification — dive to 12m with a professional.
The world's most popular scuba certification — dive independently to 18m.
The world's most popular scuba certification — dive independently to 18m.
Five adventure dives including deep and navigation — extend your range to 30m.
Five adventure dives including deep and navigation — extend your range to 30m.
Dive longer with enriched air — the most popular specialty in diving.
Dive longer with enriched air — the most popular specialty in diving.
Extend your depth limit to 40m and learn deep-dive planning.
Extend your depth limit to 40m and learn deep-dive planning.
Explore shipwrecks safely — surveying, mapping and penetration lines.
Explore shipwrecks safely — surveying, mapping and penetration lines.
Master compass and natural navigation — never lose the boat again.
Master compass and natural navigation — never lose the boat again.
Discover the reef after dark, when nocturnal marine life comes alive.
Discover the reef after dark, when nocturnal marine life comes alive.
Focused specialty courses — pick the skills that match your diving.
Focused specialty courses — pick the skills that match your diving.
Guided fun dives for certified divers — single, double or multi-day.
Guided fun dives for certified divers — single, double or multi-day.
Prevent and manage dive emergencies — the most rewarding course you will take.
Prevent and manage dive emergencies — the most rewarding course you will take.
CPR and primary/secondary care — the first-aid foundation for Rescue Diver.
CPR and primary/secondary care — the first-aid foundation for Rescue Diver.
Your first professional rating — lead certified divers and assist courses.
Your first professional rating — lead certified divers and assist courses.
Teach scuba worldwide — the Instructor Development Course and exam.
Teach scuba worldwide — the Instructor Development Course and exam.
Breath-hold freediving — relax, equalise and descend on a single breath.
Peak months mean clearest visibility, best marine sightings and stable weather. Shoulder is still good. Off-season often has rough conditions or monsoon.
Marine life you can spot diving here. Click any creature to find trips that target sightings of it.
Once your diving is sorted, book the rest of the trip. We've matched flights, stays, things to do and local transport to Koh Tao so you can plan it all in one place.
Fly into Koh Samui (USM) · 5-6 hours from India.
Hotels and stays near the dive sites — compare rates and book direct.
No ride-hailing app operates here — hotels and dive centres arrange airport/boat transfers. We can pre-book one for you.
Known for affordable diving, with calm water and active marine life year-round.
What pulls divers to Koh Tao: Cheapest Open Water in the world.
Diving conditions are typically calm to moderate, with water temperatures around 27-30°C.
It's a particularly strong fit for beginners, budget divers, backpackers.
Tell us your dates, certification level and what you want to see, we'll match you to the right trip in Koh Tao and lock the dates in minutes.
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