Welcome to

CHALOK

REEF DIVERS

Your Scuba Diving School in Koh Tao, Thailand — Based in Chalok Baan Kao

Ready to learn to scuba dive, earn your Open Water Diver certification, or just enjoy some amazing fun dives? Chalok Reef Divers is your go-to dive center in the peaceful south of Koh Tao — famous for its vibrant marine life, top-tier dive sites, and chilled island atmosphere.

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Scuba Diving Koh Tao – SSI-Certified Dive Centre in Thailand

Scuba diving in Koh Tao is known worldwide for its shallow coral reefs, granite pinnacles, artificial dive sites, and year-round diving conditions.

With over 50 dive locations — including the famous HTMS Sattakut wreck, Barracuda Rock, Sail Rock, and Sunset Bliss — it’s no surprise that Koh Tao is regarded as one of the best scuba diving destinations in the world.
Source: Tourism Authority of Thailand (TAT)

The island also benefits from reliable ferry connections, a recompression chamber, strong safety standards, and decades of experience in diver education, making it an ideal location for both beginner and advanced divers.

Top Dive Sites Around Koh Tao

  • Chumphon Pinnacle – pelagic species, whale sharks, and schooling fish
  • Southwest Pinnacle – granite pinnacle with dramatic underwater terrain
  • HTMS Sattakut Wreck – artificial reef and popular wreck dive
  • Sail Rock – advanced diving, deeper profiles, and rich marine life
  • Shallow reef sites – like Japanese Gardens and Mango Bay that are ideal for Open Water dives, refresher courses, and training

Our dive boat visits the best dive sites daily, depending on conditions, diver experience, and training goals.

SSI Scuba Diving Courses in Koh Tao

As an SSI dive centre in Koh Tao, we offer internationally recognised scuba diving certifications for beginners, certified divers, and those pursuing a professional diving career.

• Try Scuba Diving – try dive experience with no prior certification

• Open Water Diver – your first full scuba diving certification

• Advanced Open Water Diver –  with this program improve skills and explore deeper dive sites

• Rescue Diver + Emergency First Response

• Divemaster Training – professional diver pathway

• Specialty courses – Nitrox, Night Diving, Perfect Buoyancy, Deep Diving

All courses include high-quality dive equipment rental, structured confined water training, open water dives, and small group instruction for safety and comfort.

⭐ Rated 5.0 on Google: We’re proud of our exceptional customer reviews.

 
Divers love our friendly vibe, eco focus, and professional instructors.
 
Ready to start your Koh Tao diving adventure?

 

GO DIVING

Why Scuba Diving in Koh Tao Is World-Famous

Scuba diving in Koh Tao is known worldwide for its shallow coral reefs, granite pinnacles, artificial dive sites, and year-round diving conditions.

With over 50 dive locations — including the famous HTMS Sattakut wreck, Barracuda Rock, Sail Rock, and Sunset Bliss — it’s no surprise that Koh Tao is regarded as one of the best scuba diving destinations in the world.
Source: Tourism Authority of Thailand (TAT)

The island also benefits from reliable ferry connections, a recompression chamber, strong safety standards, and decades of experience in diver education, making it an ideal location for both beginner and advanced divers.

Whether you’re a complete beginner or an experienced diver, we offer:

  • Safe, sheltered dive sites perfect for training and try dives

  • Amazing visibility year-round

  • Over 20 dive sites, from shallow bays to deep pinnacles

  • A mix of fun diving and top-tier training

Try Diving on Koh Tao and you may get lucky and see a Whale Shark Viens plonger à Koh Tao
Tauchen Koh Tao Deutsche Tauchschule

Training carried out in our own onsite swimming pool.

WHY CHOOSE CHALOK REEF DIVERS?

There are many dive shops in Koh Tao, but here’s why divers choose us:

Safety

Safety and professionalism

All of our dive courses and fun diving trips are run to the highest of standards with both your safety and enjoyment in mind. At Chalok Reef Divers, the level of service we provide doesn’t just check the box on diving standards. We pride ourselves on exceeding them.
Small dive groups

Small groups

We limit group sizes on all courses and dive trips to a maximum of 4 people per dive professional to ensure your safety and enjoyment. Larger courses can be accommodated on request, however, we simply add another instructor.
Diving on Koh Tao

Excellent location

Our home base in Chalok is located far enough away from the hustle and bustle of Sairee and Mae Haad to ensure a peaceful experience, yet close enough to allow easy access to all of the services and facilities you need. Just to make things extra easy, we offer a free shuttle service.
Save the world and the oceans Eco diving practices

Eco focus

We’ve made every effort to ensure our operations are as eco-friendly and sustainable as possible. We run regular land and beach clean-ups and minimise the utilisation of single-use materials around our resort.

Explore Marine Life While Scuba Diving in Koh Tao

Diving around Koh Tao offers encounters with vibrant coral reefs, reef sharks, barracuda, turtles, macro life, and occasional whale sharks.

From shallow training sites to deep granite pinnacles, the island offers diving adventures for every certification level. Whether you want to improve buoyancy control, explore wrecks, or simply enjoy fun diving, we have packages to suit your experience level and travel plans.

Start Your Scuba Diving Adventure in Koh Tao

Chalok Reef Divers is located at Woodlawn Villas Resort and Chalok Reef Hostel in Chalok Baan Kao, Koh Tao — close to some of the island’s best dive sites.

📍 Chalok Baan Kao, Koh Tao, Thailand
📱 Contact us via WhatsApp or our booking form
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Frequently Asked Questions About Scuba Diving On Koh Tao

What is the best dive site in Koh Tao?

Popular dive sites include Chumphon Pinnacle, Sail Rock, and the HTMS Sattakut wreck. Each site offers unique underwater landscapes and marine life.

 

Yes. Koh Tao is one of the best places in Thailand to learn scuba diving. Try Scuba Diving experiences lets you explore the reef safely with a certified instructor — no license required. If you would like to get your diving license you can take the Open Water course.  Both of these options are ideal for first-time divers.

Our Open Water Diver courses take 3 days and include electronic  materials and theory sessions, confined water training, and open water dives.

Thanks to the island’s sheltered location in the Gulf of Thailand, we can offer excellent training conditions on our dive courses on Koh Tao all year round. With over 20 dive sites to choose from, there’s always a safe and sheltered spot for try diving and training courses.

Yes. Koh Tao has a recompression chamber, experienced instructors, strong safety protocols, and a well-established dive infrastructure.

Do I need dive insurance?
Dive insurance is recommended for all divers. Our team can advise on coverage, medical requirements, and safety procedures before your dives.