Learn Scuba Diving in Koh Tao

What you can realistically reach: An Open Water course (3–4 days) certifies you to dive to 18 m independently with a buddy — a real, globally recognised qualification. Deeper, technical and instructor levels are clearly defined steps beyond.

Schools in Koh Tao

Checked by hand against each school's own course pages. No school paid to be listed.

• Crystal Dive Resort
  PADI Divemaster Course / Instructor Development Course (IDC)
  Crystal Dive is a long-running Koh Tao PADI 5-Star centre on Sairee Beach offering the full professional pathway, including a multi-week Divemaster internship and a 14-day Instructor Development Course run by Platinum Course Directors.
  https://www.crystaldive.com/
• Ban's Diving Resort
  PADI Divemaster internship / Career Development pathway to Master Instructor
  Ban's Diving Resort, established on Sairee Beach in 1993, is a PADI 5-Star Career Development Centre running the full professional progression from Divemaster internship through Instructor and Master Instructor with on-site resort accommodation.
  https://www.bansdivingresort.com/en/
• Big Blue Diving
  Divemaster Training Course (4-6 week internship)
  Big Blue Diving is a Koh Tao dive school on Sairee Beach whose Divemaster candidates typically train over a 4-6 week internship with mentoring and workshops, alongside a separate technical-diving centre and marine conservation program.
  https://www.bigbluediving.com/

The room

• Group — Small groups, a few students per instructor, tightly capped underwater.
• A normal day — Theory and pool/confined skills first, then open-water dives building to the certification dives.
• Who comes — Travellers and holidaymakers of all levels, a wide age range.

Want the rest — a normal day, first hour to last? Ask the school; a serious one answers in two minutes.

The credential

Open Water Diver -> Divemaster -> Open Water Scuba Instructor (PADI / SSI) · Certifying body: PADI / SSI / CMAS

A recognised qualification an outside body stands behind is not the same as a certificate a school prints itself. We name which it is — you should ask the school the same.

Also for Scuba Diving

What I check before I send you anywhere

I'm Arnaud. I cook for a living, and I've spent fifteen years on the water — so I know the difference between a real school and a good-looking website. I built the Atlas because I got tired of the second kind. Here is what a place has to clear before it goes on here, and what I'll tell you straight when it doesn't.

• The craft is actually alive there. A working scene, with people who do this every day — not a demo put on for visitors.
• There's a real teacher behind it. Named, still practising, and certified where the craft has certificates.
• The credential is what it claims to be. A state diploma and a certificate a school prints itself are not the same thing. I check which, and I say which.
• I tell you how sure I am. Most pages here are verified by hand. A few say "still checking" — I'd rather admit that than pretend.
• Nobody pays to be here. No commission, no selling the trip. The order on this map is the strength of the community, never the size of the wallet.
• If I wouldn't send a friend, it isn't on the map.