Learn to Dive in Thailand
With Instructors Who Love Teaching As Much As Diving
Diving isn’t just what we do—it’s who we are. And teaching people to dive?
That’s where the real magic happens.
Whether you’re taking your very first breath underwater or pushing into technical diving, our team of passionate instructors will guide you every step of the way. No rushing, no pressure, just patient, professional dive education in one of the world’s most beautiful underwater classrooms.
WHY LEARN WITH BIG BLUE
Instructors Who Actually Love Teaching
Our team doesn't just teach diving—they live for it. With roots in Koh Tao (Thailand's dive teaching capital) and over 20 years combined experience, they bring passion, patience, and professionalism to every course.
Perfect Learning Environment
Warm, clear waters. Incredible marine life. Less crowded than Phuket. From our dedicated training centre to world-class Similan liveaboard courses, we've created ideal spaces for learning.
Small Groups, Big Attention
You're not a number in a factory. You're a person learning something new, and you deserve individual attention, encouragement, and support throughout your journey.
SSI Certification
All courses certified through SSI (Scuba Schools International), recognized worldwide and featuring the best digital learning materials in the industry.
START YOUR DIVING JOURNEY
Open Water Diver
Your Gateway to the Underwater World
This is the start of something incredible.
Nervous about learning to dive? That's completely normal.
Most people are. Breathing underwater goes against every instinct. Your ears might hurt when you swim in deep pools. The equipment looks complicated. What if you panic?
Here’s the truth: thousands of people overcome these exact same concerns every year and discover an entire world they never knew existed. With the right instruction, patience, and support, you absolutely can too.
What You'll Learn
By the end of this course, you’ll be a confident, certified diver able to explore the underwater world to 18 metres. You’ll understand how your equipment works, how to stay safe, and how to move gracefully through the water like you were born to it.
Worried about ear pressure? We teach you how to equalize from day one.
Concerned about fitness? If you can swim, you can dive.
Think you’re too old? We’ve certified divers in their 70s.
This is the start of something incredible.
The Big Blue Difference
- Patient, experienced instructors who remember their first time too.
- Warm, calm waters perfect for building confidence
- Small class sizes ensuring personal attention
- Beautiful marine life making every training dive an adventure
Is there a particular area of diving that interests you?
Then look no further, our instructors can teach a wide range of specialities.
Improve skills such as buoyancy, photography or extend your dive experience with a Night or limited Visibility Dive.
Expand your diving skill set with the Advanced Adventurer, Eanx Nitrox Diver, Deep Diving and Sidemount Diver specialities.
Want to take your diving to the next level?
Advanced Nitrox, Decompression Procedures, Advanced Wreck and Extended Range all available with Big Blue. To find out more get in touch with us.
Scuba Skills Update or Refresh
In the post covid world we find ourselves in many divers haven’t dived in a while. A scuba skills update or scuba review is a great way to refresh your memory and regain the confidence in your skill set.
- 4-30 dives, not dived within 6 months?
- 30-100 dives, not dived within 12 months?
- 100 + dives, not dived within 12-18 months?
Then completing a Scuba Skills Update will be greatly beneficial for your trip. Whilst not compulsory, we believe that being honest with yourself and possibly refreshing your skills is a good thing. Even experienced divers who haven’t dived for a while, often are surprised by how much they forget.
Complete a Scuba skills update to be 100% ready for your trip.
How does it work?
Starting with a quiz, not a test. This gives us an opportunity to see what you remember, or more importantly what you may have forgotten. This can be done before you arrive in Khao Lak. After this we can talk over some of the key points before heading to our pool and running through the skills.
The skills included are not only important for your safety, but also for your comfort. This is the main reasons we recommend taking the time to complete a skills review or update.
We really believe it allows you to get the best out of your Similan Liveaboard adventure. If you have any questions regarding the Scuba Skills Update get in touch.
Price only 2,000 THB
Advanced Adventurer
This easy-going course can be spread out over your liveaboard. Continue your diving education by improving your basic dive skills and combining other interests with in diving.
You course contains 5 training dives, including Deep Dive (30m) and Underwater Navigation.
You and your instructor choose the remaining 3 dives from:
- PerfectBuoyancy
- Night and Limited Visibility Dive
- EANx Nitrox
- Waves, Tides and Currents
- Search and Recovery
- Photo and Video
- Wreck Diving
- Fish Identification
We now also offer a range of speciality courses!!
Including Deep, Sidemount, Photo-Video and several ecology speciality’s with more getting added all the time. These specialty’s can be done in number of ways and on board any of our boats. If this is of interest then get in touch and we can start to custom plan your package or course.
SSI Enriched Air Nitrox
Joining us on our Similan liveaboard? This season we will be offering some amazing deals on our SSI Nitrox Diver Speciality.
Why should I choose Nitrox? We believe becoming a SSI Nitrox Diver enables you to get the best out of your Similan Liveaboard.
As a SSI Nitrox diver, you can increase your bottom times (NDL’s) and safety margins, plus shorten your surface intervals – so you can spend more time diving and less time waiting! In this program, you will learn the skills you need to prepare and safely plan dives with enriched air mixtures of up to 40% oxygen. Upon completion, you will earn an SSI Enriched Air Nitrox 32% or 40% certification.
*includes 14 tanks of Nitrox*
Open Water Diver*
This globally recognised certification program is the best way to begin your lifelong adventures as a certified scuba diver. Once you have completed all the skills to a safe, confident level and certification is gained. You will be able to dive to a maximum depth of 18M with an equally or more qualified dive buddy.
Before starting this course you need to be able to swim 200m and float or tread water for 10 minutes unaided.
Facts and Training Standards
Minimum Age: 10
Amount of Pool/Confined Water Sessions: 6
Amount of Open Water Sessions: 4
Maximum Training Depth: 18 m / 60 ft
SSI Marine Ecology Diver
Dive deeper into the wonders of marine ecosystems with the SSI Marine Ecology specialty program! Discover how ocean organisms interact within their environments, explore the energy flow through marine communities, and understand the vital connections between various ocean ecosystems.
With this newfound insight, you’ll develop a deeper appreciation for the marine life you encounter on your dives. Start your journey online today and achieve your SSI Marine Ecology Specialty certification!
SSI Deep Diver
Take your diving skills to new depths with the SSI Deep Diving Specialty! Through a blend of classroom sessions and open water dives, you’ll gain the knowledge and skills needed to safely explore depths between 18 and 40 meters.
Learn how to plan and manage your deep dives with confidence, utilizing dive computers and gas consumption calculations to maximize your experience. Upon completing the program, you’ll earn your SSI Deep Diving Specialty certification, opening the door to breathtaking deep dive sites worldwide. This specialty also prepares you for advanced training, making it an essential step forward in your diving education.
The Big Blue Dive Equipment Shop
Coming to dive with us? Need anything for your trip?
Why not order now and we will have it waiting for you when you arrive in Khao Lak
Our store has some of the worlds best brands available at great prices.
When booking a trip with us, you will qualify for some even better deals too.
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Sharkskin Titanium Chillproof Hood
2,516฿ Select options This product has multiple variants. The options may be chosen on the product page -

Shearwater Teric
39,900฿ Select options This product has multiple variants. The options may be chosen on the product page -

Scubapro Nylon SMB
3,305฿ – 3,535฿Price range: 3,305฿ through 3,535฿ Select options This product has multiple variants. The options may be chosen on the product page -

Sharkskin Titanium Chillproof Long Sleeve Full Zip Male
9,856฿ Select options This product has multiple variants. The options may be chosen on the product page