try Scuba Diving in Koh Tao with the SSI Basic diver. This image includes a couple of scuba divers on one of Koh Taos best dive sites.

Try Scuba Diving in Koh Tao for the first time!

SSI Basic Diver

Your first time scuba diving? Discover scuba diving with our SSI Basic Diver Program, perfect for beginners wanting a taste of underwater exploration. In just half a day, you’ll try scuba diving and learn essential scuba diving skills, understand basic safety protocols, and dive at Koh Tao’s stunning dive sites.

Level

Beginner

Course

Duration

0.5

Days

Max Depth

12

Meters

Cost

฿3,500

Thai Baht

The Learning Experience

This half-day SSI Basic Diver course offers a beginner-friendly intro to discover scuba diving in Koh Tao, blending stunning underwater scenery with expert guidance from our certified SSI instructors. You’ll try scuba diving by starting the day with an overview of dive safety and equipment before heading out for two open water dives at Koh Tao’s best dive sites.

The first dive will be spent in the shallow water practicing a few basic Scuba Diving skills to help you feel comfortable and confident. On the second dive you will spend time discovering why Koh Tao is renowned for its vibrant marine life and crystal-clear waters, all while enjoying a safe and unforgettable scuba diving experience.

Finish the day by getting your SSI Basic Diver recognition which will allow you to experience scuba diving with an instructor up to 12m for the next 6 months!

Ready to start your adventure?

What’s included

What to bring

Prerequisites

Itinerary

10:00-12:00 Basic academics

12:00-12:30 Break

12:30-17:00 2 x ocean dives (max. 12m)

Take the Next Step: SSI Open Water Diver

If you’ve completed your SSI Basic Diver program or decided to try scuba diving and loved it, the SSI Open Water Diver course is the perfect next step. This certification builds on your initial experience, giving you the skills, knowledge, and confidence to dive independently with a buddy to a depth of 18 meters.

With a balance of classroom learning, confined water sessions, and open water dives, you’ll move from trying scuba to becoming a certified diver ready to explore the ocean anywhere in the world.

SSI Basic Diver

A half-day introduction to try scuba diving, perfect for beginners seeking a quick, exciting experience exploring Koh Tao’s underwater beauty.

All activities start the day after arrival on the island.

฿3,500

Why choose Goodtime for Scuba Diving in Koh Tao?

Smaller Groups

Max 4 students per instructor for a more personalised experience.

Later Starts

Enjoy the freedom to sleep in; we start later than most dive schools on the island.

Uncrowded dive sites

We carefully plan our dive trips to avoid the crowds.

Fully Equipped Classroom

Our beach front classroom equipped with Air-Con and WiFi is the perfect environment to learn to dive on Koh Tao.

Highly experienced instructors

Our professional SSI instructors are passionate divers with extensive local knowledge.

Speed boat

We have our very own speedboat that allows us to travel to further dive sites in the quickest time possible.

Reviews

pleun H.
14 January 2026

Mira is a fantastic divemaster! She helped me tremendously with the refresher course; I loved it! Mira also has other great tips!

Joel L.
12 January 2026

I made my Advanced OW with Goodtime Adventures. It was the perfect experience right there. The people were very friendly in general and Max did an excellent job as a dive instructor. I felt very safe all the time and I had a lot of fun during the course. 😊

Christoph K.
11 January 2026

After two months of intensive training, tons of fun, and many wonderful experiences, I'm proud but also a little sad that I've now completed my Divemaster certification. I'd like to sincerely thank everyone who accompanied me on this journey for the tips, tricks, pleasant conversations, and activities off the water! Even the somewhat dreaded snorkel test will forever remain a cherished memory. It was simply fantastic and an incredibly satisfying conclusion to a phenomenal time. Ana, Lydia, Ezgi, Ryan, Mira, T2, Joe, Max, Andrea, Shai, Bart, and Charly, thank you so much for everything. Lydia, Gary, and Gilly, all the best and have fun for the rest of your training! Kwan, thank you so much for the excellent food when I was out on the boat longer than usual and for all the lovely conversations. A heartfelt thank you also goes to all the wonderful people behind the bar and in the kitchen of the Goodtimes Bar (Nini, Myo, Jo, etc.) – you're doing an outstanding job! Thank you so much for all the delicious food! Eimear, you're not only a master in the water, but also when it comes to food and drink. The next few Saturdays are going to be extremely tough without your fantastic spare ribs. Last but not least, Lukas – what an amazing guy!! Thank you so much for the gentle introduction to the DMT program for my ears. I learned so much from you – and not just about diving. You're a true role model, yet still so much fun! It's an honor to be part of the Goodtimes family.

Julia V.
11 January 2026

Did my rescue diver with Ana, she’s the BESTEST OF THE BEST! Liv and Michi were the assistants, amazing experience!

Ted
11 January 2026

Big thanks to @Lydia and Goodtime for an epic OW course. She made the whole experience so fun and stress-free. If you’re on the fence, look no further. This is 100% the spot for the best vibes and diving! 🤿❤️

Rafi B.
9 January 2026

Me and my friend did the refreshers course and two fun dives!! It was worth every penny the guides were amazing !!! Shay, ana and Mira !!! They are the best 💯

Frequently Asked Questions

Frequently asked questions about your experience Scuba Diving in Koh Tao

Scuba Diving in Koh Tao has been very popular for years, we have some of Thailand’s best dive sites and great diving conditions all year round. Our most popular course is the SSI Open Water Diver course which takes 2.5 days to complete and allows to to dive all over the world once you are certified. This course is ideal for beginners who want to get Scuba certified on Koh Tao.

If you are short on time the SSI Basic Diver is for you! This is a half-day experience where you can dip your toes in and explore the underwater world.

You can earn an Open Water Diver certification with any major dive organization. An SSI diver can dive at PADI centers worldwide, and vice versa.

However, with SSI you do get benefits:

Online Learning
While most organisations offer online learning, not all of them offer it free of charge and can end up racking up quite the bill. SSI offers your learning materials for free as part of your course registration and is easy to navigate using the MySSI app. The app is regularly updated and also offers additional free courses like the ‘Try Diving’ and the ‘Blue Oceans‘ for you to enhance your scuba diving knowledge.

Recognition Ratings
SSI do things a little differently to other diving agencies, they continue to recognise your advancement in diving whether you are enrolled in a course or not. When you reach certain milestones you will be awarded recognition status. This is why we encourage specialities over the SSI Advanced Open Water or PADI Advanced Open Water courses. With SSI once you complete 4 speciality courses and 24 dives you will automatically be rewarded with Advanced Open Water recognition status. Taking this route allows you to explore your passions underwater without being restricted to one exploration dive per specialty! Don’t forget we offer discounts on bundles too!

Flexibility
SSI allows its professionals to teach using an 80/20 approach. Instructors can adapt 20% of the course to match each student’s learning pace.

The minimum age to learn to scuba dive and become certified is ten years old. If the diver is between 10-14 they will be awarded with a Junior SSI Open Water Certification that will automatically upgrade to Open Water Diver once they turn 15.

However, the SSI Explorers program provides options for children aged six and up to experience diving and snorkeling in very shallow water.

Diving in Koh Tao is popular for its year-round diving conditions, boasting clear waters, vibrant marine life, and stunning dive sites available 365 days a year. Whether you’re a beginner starting with an SSI Open Water Diver course or an experienced diver, diving in Koh Tao offers it all—excellent training sites, famous dive spots, shipwrecks, and pinnacles like Sail Rock. With some of the world’s most affordable and accessible diving packages, Koh Tao remains a must-visit destination for underwater enthusiasts across Southeast Asia.

At Goodtime, we make your Koh Tao experience even more affordable with our exclusive discounts. Get 25% off accommodation, with rates starting at just 1,150 Baht for private double or twin rooms and 500 Baht per night in our 4-bed dorms. Enjoy 20% off delicious meals at our beachfront restaurant, perfect for refueling after your adventures. Plus, save 10% when you book any scuba diving or rock climbing bundle—making it easier than ever to dive, climb, and relax on Koh Tao!

SSI do things a little differently to other diving agencies, they continue to recognise your advancement in diving whether you are enrolled in a course or not. When you reach certain milestones you will be awarded recognition status. This is why we encourage specialities over the SSI Advanced Open Water or PADI Advanced Open Water courses. With SSI once you complete 4 speciality courses and 24 dives you will automatically be rewarded with Advanced Open Water recognition status. Taking this route allows you to explore your passions underwater without being restricted to one exploration dive per specialty! Don’t forget we offer discounts on bundles too!

Yes, a basic level of in-water ability is required to scuba dive. For certain courses, you’ll need to complete a water fitness evaluation before heading into the open water. This includes either a 200-meter unaided swim or a 300-meter swim using a mask, snorkel, and fins. These requirements ensure your safety and confidence during your underwater adventures.