Scuba Diving Courses in Koh Tao

We offer a full range of SSI scuba diving courses in Koh Tao, from first-time experiences to professional training. Our focus is on small groups, clear instruction, and a relaxed pace — so you can learn comfortably and safely.

Whether you’re completely new to diving or looking to build on existing experience, we’ll help you choose a course that fits your confidence level, travel time, and goals.

Beginner Diving Courses

These courses are designed for first-time divers or those with little to no previous experience.

Basic Diver course

Scuba Diving Courses

Are you keen to try scuba diving but not sure you’ll like it?
Or maybe you’re only on Koh Tao for one day… that’s when the SSI Basic Diver course is perfect.

SSI open water course

Student completing training dives during the SSI Open Water Diver course at Echo Divers Koh Tao.

The Open Water course is our most popular option here.
This globally recognised certification programme is the best way to start a lifetime of adventures as a certified diver.

ADVANCED DIVING COURSES

If you’re already certified, these courses help you build confidence, control, and experience.

advanced course

Divers completing the SSI Advanced Open Water Diver course during a wreck dive at Echo Divers Koh Tao.

Are you a newly certified diver and wondering what’s next? Or maybe you’d like to do a specialty course but aren’t sure which one to choose? Then the SSI Advanced Open Water course is a great next step in your diving journey.

react right course

Student practising first aid techniques during the SSI React Right course at Echo Divers Koh Tao.

The Emergency First Response course, giving you the training and knowledge to act confidently as a first responder in a medical emergency.
In this programme, you’ll learn primary assessment, first aid, CPR, and primary stabilisation techniques.

diver stress & rescue course

Diver practising surface rescue skills during the SSI Diver Stress & Rescue course at Echo Divers Koh Tao.

This specialty programme teaches you the skills you need to protect yourself and other divers.
Whether you’re aiming to go pro or simply want more confidence, it builds the mindset to be rescue-ready in real-world situations.

Specialty Diving Courses

Specialty courses allow you to focus on specific skills or types of diving. They’re ideal if you want to improve particular areas or explore new underwater environments.

SSI Perfect Buoyancy Specialty

Diver hovering in perfect neutral buoyancy during the SSI Perfect Buoyancy Specialty course at Echo Divers Koh Tao.

Good buoyancy is key to becoming a better diver — it helps protect the fragile underwater environment and can even improve your air consumption.

SSI Underwater Navigation Specialty

Diver practicing compass navigation during the SSI Underwater Navigation Specialty course at Echo Divers Koh Tao.

In this course, you’ll learn how to use a compass and natural navigation, estimate distance, leave and return to a designated point, and practise basic navigation patterns.

ssi Deep Diving
Specialty

Diver exploring a deep wall during the SSI Deep Diving Specialty course at Echo Divers Koh Tao.

You’ll learn how to plan and safely complete deep dives, using dive computers and gas consumption calculations to get the most out of every dive.

ssi Enriched Air Nitrox
Specialty

Close-up of yellow scuba tanks prepared for enriched air nitrox diving in Koh Tao, Thailand

In this programme, you’ll build new skills and expand your diving knowledge while learning how to safely plan and dive with enriched air mixes of up to 40% oxygen.

SSI Advanced Wreck Diving
Specialty

Diver using a guideline during wreck penetration in the SSI Advanced Wreck Diving Specialty course at Echo Divers Koh Tao.

Dive inside wrecks safely while developing advanced planning, precise buoyancy, and control skills. A challenging course for experienced divers ready to progress.

SSI Underwater Photo & Video
Specialty

Diver using an underwater camera and strobes during the SSI Underwater Photo & Video Specialty course at Echo Divers Koh Tao.

Capture photos and video underwater while maintaining good buoyancy and awareness. A practical specialty course for divers wanting to document their dives responsibly.

Night & Limited Visibility
Specialty

Diver using a torch during the SSI Night Diving and Limited Visibility Specialty course at Echo Divers Koh Tao.

Experience diving in low-light conditions while building confidence, communication, and control. A practical specialty course for divers looking to expand their comfort zone.

Refresher & Fun Dives

For certified divers who want to get back in the water without starting a full course.

Scuba Review (Refresher)

Divers practising scuba skills in a swimming pool during a scuba refresh in Koh Tao, Thailand

A relaxed refresher session to revisit key skills and rebuild confidence before joining regular dives. Ideal if you haven’t dived for a while or just want a gentle restart.

Fun Dive Packages

Scuba diver giving a peace sign while diving over a coral reef in Koh Tao, Thailand

Fun dives around Koh Tao’s best sites, focused on relaxed diving and enjoying the underwater world. Suitable for certified divers looking to explore without training pressure.

If you’re unsure which option fits your experience level or travel plans, just send us a message.
Tell us a bit about your diving background and how long you’re staying,
and we’ll help you choose — honestly and without pressure.

Professional Training

Professional-level training for divers looking to take their skills, experience, and understanding of diving further.

SSI Divemaster Course

Move from recreational diving into the professional level by building experience, leadership skills, and a deeper understanding of dive theory and practice. A demanding but rewarding course for divers considering a longer stay or a future in diving.

Divemaster students studying dive theory during professional training on Koh Tao