No experience? Perfect. That’s exactly who the open water course is designed for.
One of the biggest myths about scuba diving is that you need to be fearless, super fit, or have grown up swimming with dolphins. But honestly, none of that is true. You don’t need to be an expert swimmer, an adrenaline junkie, or someone who’s spent their life in the ocean. If you are willing to learn, can follow instructions, and have a sense of adventure, you are already halfway there.
The only problem you will face?
Once you start looking for a Koh Tao Open Water course, you will quickly realise there isn’t just one option. The island is home to dozens of dive schools, and almost all of them offer beginner scuba courses. Some include free accommodation, others focus on small class sizes, whilst some are known for premium facilities or multilingual instructors.
So, how do you choose?
That’s exactly what this guide is here to help with. We will compare some of the most popular schools offering open water courses in Koh Tao so that you can choose the best fit for your budget and other preferences.
Best Koh Tao Dive Schools for an Open Water Course
1. La Bombona Diving
For first-time divers, La Bombona Diving School offers a beginner-friendly Koh Tao Open Water course that prioritises comfort and confidence from day one. Their Koh Tao Open Water course is built with complete beginners in mind, so the focus is on making you feel comfortable before you ever head into the ocean.
The package includes;
- Online training materials
- Theory lessons
- Complete diving equipment rental
- One pool training session
- Four ocean dives
- Certification to 18 metres
- Snacks and refreshments on the boat
Here, everything is bundled into one package, so there are fewer surprise costs along the way. The smaller-group approach also means you usually get more personal attention from your instructor. And this makes a huge difference when you are learning something completely new. Their RAID Open Water Certification course is available at an unbeatable price of 11,000 ฿.
2. Big Blue Diving
Big Blue Diving has earned a reputation as one of the island’s most established dive centres. Its SSI Open Water Diver course is designed specifically for beginners and can be completed in approximately 2.5 days. If you are considering Big Blue Diving, here’s a quick overview of what to expect.
- The price of their SSI Open Water Diver Course in Koh Tao is 12,000 ฿.
- It takes around 2.5 days to complete and includes five training dives.
- Receive an internationally recognised certification that allows you to dive to a maximum depth of 18 metres.
- Need to be at least 10 years old, be comfortable in the water, and meet the basic swimming requirements.
3. Scuba Shack Koh Tao
If you are the kind of person who likes to take things one step at a time, Scuba Shack Koh Tao might be right up your street. Their PADI Open Water course runs over four days, so there’s no feeling of being rushed through the learning process.
You will start by getting to grips with the theory, then practise your skills in shallow, confined water before heading out for four open-water dives around Koh Tao. The course costs 12,000 THB and includes your PADI eLearning materials, full scuba equipment, certification, and online manual. As long as you are 10 or older, can swim 200 metres, float for 10 minutes, and meet the medical requirements, you are ready to start your scuba adventure.
4. New Way Diving
New Way Diving’s SSI Open Water Diver course is designed for complete beginners and takes three days to complete. Here are the rest of the glimpses of this school’s Open Water course in Koh Toh;
- Minimum age: 10
- Academic Sessions: 6
- Confined Sessions: 2
- Open Water Dives: 4
One thing that makes New Way Diving stand out is the added value. You will receive a free T-shirt and two complimentary fun dives. This gives you the chance to enjoy Koh Tao’s underwater world even after you have earned your certification.
5. Crystal Dive
Crystal Dive Koh Tao is one of the island’s longest-running and most recognised dive centres. What really sets the school apart is its purpose-built training facilities and the flexibility it offers students. Whether you are travelling on a tight schedule or simply want to learn at your own pace, the team works hard to make the experience as smooth and enjoyable as possible.
The three-day Open Water course combines theory sessions, pool training, and four open-water dives, helping beginners build confidence step by step before earning an internationally recognised certification to 18 metres. If you’re looking for a school with experienced instructors, a lively diving community, and a beginner-friendly approach, Crystal Dive is certainly one to consider.
Frequently Asked Questions
Q: Can Complete Beginners Really Learn Scuba Diving in Koh Tao?
A: Absolutely. You don’t need previous diving experience before starting an open water diver course in Koh Tao. But being beginner-friendly doesn’t mean there are zero requirements. Students need to demonstrate adequate swimming ability. This means being able to:
- Swim 200 metres unaided, OR
- Swim 300 metres using a mask, snorkel and fins
- Float continuously for 10 minutes
Q: What About Age Requirements for an Open Water Diver Course in Koh Tao?
A: There are different diving limits depending on age.
- Age 8: Can participate in introductory dives up to 3 metres.
- Ages 10–12: Can dive up to 12 metres when accompanied by a qualified adult.
- Ages 12–15: Eligible for the Junior Open Water Diver course, allowing dives up to 18 metres.
- Ages 15 and above: Qualify for the standard Adult Open Water Diver course.
If you are travelling with children or teenagers, it’s therefore worth discussing the appropriate programme and restrictions with the dive school before booking.
Do You Need to Be Medically Fit?
Yes, your health matters when you are diving. Students are required to complete a medical questionnaire before participating to assess whether there are health considerations that need addressing. Don’t treat this bit like the terms and conditions on a new app and tick everything without reading it. Answer honestly. If your answers indicate that medical clearance is required, follow the dive school’s instructions before getting into the water.
Do You Need to Buy Scuba Equipment?
No. Many schools offer complete diving equipment rental, which is included in the Open Water course package. That’s particularly useful if this is your first course. There’s not much sense spending a fortune buying equipment before you have even discovered whether scuba diving is going to become your lifelong obsession. Get certified first. Become addicted later. Then start worrying about how much dive gear you can squeeze into your luggage.
How Deep Can You Dive After Certification?
Completing the course gives you an Open Water certification to 18 metres. Eighteen metres might not sound enormous when you are sitting on dry land. Underwater? It’s an entirely different world. Your certification also isn’t something that’s only useful whilst you are holidaying on Koh Tao. The package provides an internationally recognised certification, so earning your qualification can become the beginning of diving adventures elsewhere rather than the end of your experience in Thailand.
Is the Koh Tao Open Water Course Difficult?
It’s supposed to challenge you a little. You are learning something completely new. Maybe clearing your mask feels weird the first time. Perhaps controlling your buoyancy takes several attempts. Maybe your brain simply refuses to believe breathing underwater is a sensible thing for a human being to be doing. That’s okay. The aim isn’t perfection on your first attempt. It’s learning each required skill until you can perform it appropriately and confidently. So don’t compare yourself with the person next to you. It’s your course. Go at your pace.
Conclusion
There is something wonderfully strange about your first scuba course. You arrive not knowing how to breathe underwater. Then you are learning to clear your mask. Then you are figuring out buoyancy.
And before long, you are 10 or 15 metres beneath the surface watching fish swim past while thinking: “Wait… I’m actually doing this.” That’s what makes choosing to learn scuba diving in Koh Tao such an experience. The Koh Tao open water course isn’t designed for people who already know everything about diving. It’s designed to teach people who don’t. So, if lack of experience is the only thing holding you back, stop letting it. Everyone has a first dive. Maybe this one is yours. Just make sure to choose a school that you find good.
