Scuba Diving Courses in Koh Tao

The Divers Boat is an SSI dive school in Mae Haad, Koh Tao, the divers’ island. We teach every level, from a first Try Scuba to Instructor, in English and French. Groups are capped at 4 divers per instructor, on a white boat used only for training. A hot lunch, snacks and drinks are included every day.

Instructor giving a dive briefing on the training boat in Koh Tao

Which diving course in Koh Tao is right for you?

Course For whom Duration Dives Max depth Price
Try Scuba No experience 1 day 1 to 3 12 m from 2,500 THB
SSI Basic Diver No experience Half a day 2 or 3 12 m from 3,500 THB
Open Water course Your first certification 2 days 4 + confined water 18 m 11,000 THB
Advanced Open Water Open Water divers 2 days 5 30 m 10,000 THB
Rescue Diver course Advanced divers, from 15 years old 2 days 4 to 6 – 12,500 THB
SSI Specialties Certified divers 1 to 2 days Up to 3 up to 40 m (Deep) from 5,500 THB
Divemaster course Rescue divers with 40 logged dives 1 to 3 months Unlimited – 40,000 THB
Instructor course Divemasters, from 18 years old 15 days – – 80,000 THB

Combined offers: Open Water + Advanced for 20,000 THB, React Right + Rescue for 16,000 THB. All prices are on our Koh Tao diving prices page.

Introduction-Try Scuba

Try Scuba Diving Koh Tao – Your First Dive in Thailand

Try Scuba Diving Thailand Koh Tao — The Divers Boat

SSI Basic Diver Koh Tao – Half-Day Introductory Dive

Open Water SSI Koh Tao 2-Day Course — The Divers Boat (certification SSI niveau 1)

Open Water Course in Koh Tao – SSI Open Water Diver in 2 Days

Advanced Open Water SSI Koh Tao — The Divers Boat

Advanced Open Water Koh Tao – SSI Advanced Adventurer Course

Diver Stress & Rescue

Rescue Diver Course Koh Tao – SSI Diver Stress & Rescue

React Right Koh Tao SSI First Aid — The Divers Boat

React Right Koh Tao, SSI First Aid

Deep Diving Koh Tao SSI Deep Diving 40m — The Divers Boat

Deep Diving Koh Tao, SSI Deep Diving 40m

Navigation Koh Tao SSI Navigation Diver — The Divers Boat

Navigation Koh Tao, SSI Navigation Diver

Perfect Buoyancy Koh Tao SSI — The Divers Boat

Perfect Buoyancy Koh Tao, SSI Specialty

SSI Wreck Diving Koh Tao — The Divers Boat

SSI Wreck Diving Koh Tao, Explore Wrecks

Night Diving Koh Tao SSI — The Divers Boat

Night Diving Koh Tao, SSI Night & Limited Visibility

Nitrox SSI Koh Tao SSI Enriched Air — The Divers Boat

Nitrox Course Koh Tao – SSI Enriched Air Nitrox

Search Recovery Koh Tao SSI — The Divers Boat

Search Recovery Koh Tao, SSI Search & Recovery

Video Photography Koh Tao SSI — The Divers Boat

Video & Photography Koh Tao, SSI Underwater Specialty

Koh Tao Boat Specialty SSI Boat Diver — The Divers Boat

Koh Tao Boat Specialty, SSI Boat Diver

Divemaster Koh Tao SSI — The Divers Boat

Divemaster Course Koh Tao – SSI Divemaster Training

Our diving courses in Koh Tao, step by step

Try Scuba: your first breath underwater

No experience needed: an instructor stays by your side on every dive. Classroom from 9:00 to 10:30, boat departure at 11:00. The first dive goes to 5 m maximum, the 2nd and 3rd up to 12 m, all on the same day. Try Scuba Diving in Koh Tao: full details

Open Water course: certified in 2 days

The SSI Open Water Diver is your first certification, recognised worldwide and valid for life. It lets you dive to 18 m with a buddy, without an instructor. You complete the theory online before you arrive, so your 2 days are spent in the water.

  • Day 1: classroom from 9:00 to 10:30, boat at 11:00, first confined water session in a sheltered bay (Mango Bay or Japanese Garden), then open water dives 1 and 2.
  • Day 2: second confined water session, then open water dives 3 and 4, and the multiple-choice exam.

Most dive centres on Koh Tao take 3 days for the same SSI standards. Open Water course in Koh Tao: programme and price

Advanced Open Water: dive deeper, dive better

The natural next step after the Open Water: 5 adventure dives over 2 days (3 dives on day 1, 2 dives on day 2), down to 30 m. Adventure dives can include deep, navigation, perfect buoyancy, wreck and night diving. It opens Sail Rock at full depth and the military wrecks of Koh Tao. Advanced Open Water in Koh Tao: programme and price

Rescue Diver course: become the buddy everyone wants

The SSI Diver Stress & Rescue runs over 2 days with 4 to 6 training dives, until you are ready. You learn to prevent and handle problems, at the surface and underwater. Add React Right (first aid, CPR, oxygen) to complete the training. Rescue Diver course in Koh Tao: programme and price

SSI Specialties: 1 to 2 days each

Deep diving to 40 m, Nitrox, wreck, night, navigation, perfect buoyancy, underwater photography and boat diving. Each specialty counts toward your Divemaster record, with a maximum of 3 training dives per day. All SSI specialty courses in Koh Tao

Divemaster and Instructor: go pro in Koh Tao

The Divemaster runs over 1 to 3 months (2 months recommended), from 40 logged dives, with unlimited dives on our blue fun-dive boat: finishing with 100 to 150 dives is a realistic target. The SSI Instructor Training Course then takes 15 days. Divemaster course in Koh Tao · Instructor course in Koh Tao

Divers on an open water dive over the reef in Koh Tao

What is included in every course

  • All scuba equipment, stored on the boat
  • SSI e-learning materials
  • A certified SSI instructor, maximum 4 divers per instructor
  • Open water dives at Koh Tao’s best training sites
  • International SSI certification on completion
  • Hot lunch, fruit, snacks, tea and coffee every day on the boat

Why learn to dive in Koh Tao with The Divers Boat

A boat only for training. Most dive centres on Koh Tao mix courses and fun divers on one boat. Our white boat is used only for courses, so the schedule follows your learning, not the fun-dive plan.

Small groups. Never more than 4 divers per instructor, in the water and in the classroom.

English and French. Our instructors teach in English and French, with welcome and support in Thai. Our departures are staggered, so we often reach the sites after the crowds have left.

What our students say

★★★★★ “[…] my instructor was Sophie Rivière – she was really nice and very professional at the same time – I definitely recommend them and see you guys soon for fun dives and or SSI next levels certifications”

— Charles R., Google review, September 2026

★★★★★ “Did some specialty courses over a week and was impressed by the high standard of instruction. […] Thanks to our instructors Flo and Isa and our gratitude to Medi for assisting during our rescue course.”

— Darren B., Google review, October 2025

Frequently asked questions

Do I need any diving experience to start?

No. Try Scuba, Basic Diver and Open Water start from zero. For the Open Water you need to be at least 10 years old and able to swim 200 m.

How can the Open Water course take only 2 days?

You complete the theory online before arriving. Your 2 days are then spent on the confined water sessions and the 4 open water dives: the same SSI requirements as a 3-day course, organised more efficiently.

Are the courses really taught in English?

Yes. Briefings, theory sessions and in-water instruction are all available in English, and in French.

Is an SSI certification recognised everywhere?

Yes. SSI (Scuba Schools International) is one of the largest diving organisations in the world, and its certifications are recognised by dive centres worldwide, for life.

Is lunch included?

Yes. A hot lunch, fruit, snacks, tea and coffee are included on every training day.

How long does the Divemaster take?

1 to 3 months, with 2 months recommended. Entry from 40 logged dives, certification from 60 dives.

Ready to start diving in Koh Tao?

Tell us your dates, your current level and the course you want: our team answers quickly. We are at Mae Haad pier, right off the ferry.

Book your course → · View all prices · Ask us a question