Diver underwater near tropical island, clear blue ocean surface, scenic background with boat and lush greenery while scuba diving in Koh Tao Thailand.

Unlock a new level of diving with Sidemount

SSI Recreational Sidemount Specialty

Experience the Ultimate Flexibility of Sidemount Diving in Koh Tao’s Top Dive Sites. Master buoyancy, streamline your movement, and gain unparalleled comfort with sidemount diving, opening up a world of diving possibilities.

Level

Advanced

Course

Duration

2.5

Days

Cost

฿12,000

Thai Baht

The Learning Experience

Designed for certified divers eager to expand their skills, the SSI Recreational Sidemount Specialty Course immerses you in the unique advantages of sidemount diving. Through classroom instruction and hands-on practice, you’ll master buoyancy control, equipment configuration, improved trim, and the art of navigating tighter spaces. The supportive learning environment fosters both skill development and confidence as you explore the vibrant underwater landscapes of Koh Tao.

Ready to start your adventure?

What’s included

What to bring

Prerequisites

Itinerary

09:00-10:00 Sidemount academic session
10:00-12:00 Sidemount equipment set up
12:00-13:00 Break
13:00-17:00 Confined shallow water session
17:00-17:30 Debrief

08:00-12:30 Sidemount dives 1+2
12:30-13:30 Lunch
13:30-14:00 Exam
14:00-15:00 Dive Planning
15:00-15:30 Debrief

08:00-12:30 Sidemount dive 3
12:30-13:00 Debrief and certification

The SSI Advanced Adventurer Course is the perfect follow-up to your Open Water certification. Designed to enhance your confidence and abilities, this course introduces you to five different types of dives, including deep diving and underwater navigation.

In just two days, you’ll gain the skills to dive deeper (up to 30 meters) and explore more advanced dive sites around Koh Tao and beyond. Whether you’re interested in night dives, wreck exploration, or perfecting your buoyancy, this course is your gateway to becoming a more skilled and adventurous diver.

SSI Recreational Sidemount Specialty

Unlock a new level of underwater exploration with the SSI Recreational Sidemount Course! Experience the freedom and flexibility of sidemount diving, enhancing your buoyancy and movement in Koh Tao’s breathtaking dive sites.

All activities start the day after arrival on the island.

฿12,000

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

Imane A.
13 April 2026

A huge thank you to Ana🩵, she's so sweet ☺️ The right person in the right place. I enjoyed my trial dives with her; she knew how to reassure me and show me how to enjoy diving without any worries or fears ✨ And she even has a super cute little fish toy attached to her wetsuit 🤩 Thank you, Ana 🩵 AL

alex M.
12 April 2026

If you want to get your diving license, come to Goodtime Adventures! The entire team Lisa, Gilly, Lukas, Mike, and especially Ana are incredibly professional and welcoming. They make you feel safe and confident during every dive, while also creating an unforgettable experience. A special thanks to Ana an amazing instructor who truly goes above and beyond! And if you want great photos from your dives, I highly recommend asking Mike. The pictures he took are absolutely fantastic. Cheers!

Neve
12 April 2026

Fantastic experience as a first time diver! Ana made us feel so comfortable and we did such a brilliant dive near Nang Yuan. Would highly highly recommend!

Charlotte O.
12 April 2026

What incredible experience! Anna was a fantastic scuba instructor. She had such a knowledgeable and calming presence, we felt so safe. I can’t recommend this company enough! (And mostly Anna)

Michael R.
12 April 2026

Amazing company super kind staff would absolutely recommend. My dive master Mira went above and beyond, she was so kind, funny and knowledgeable. The company also runs beach cleanups which is amazing. Loved supporting a company that gives back to the environment they operate in.

Christopher H.
9 April 2026

Many thanks to the goodtime diving crew. My colleague and me had 4 fantastic dives the last two days. Our instructor Luke (from London) was really professional, followed the rules, had a conveniant pace during the dive and looked after us frequently. The equipment we got was in an excellent condition and easy to handle with. They have their own boat which is not overloaded with customers, so getting ready for the dive was also really relaxing and stress free. The boat master Gili (who is a dive instructor as well - and more) was also really kind and helped us in all ways. All in all a solid 5 star. Thanks guys 🙌🏼

Frequently Asked Questions

Frequently asked questions about 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.

Any of the dive organisations in the world can give you the Open Water license, and with it you can dive in every dive centre in the world for the rest of your life – an SSI diver can of course dive in a PADI centre or the other way round, for example.

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 Adventurer or 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 with an 80/20 approach meaning that the instructor can adapt 20% of the course to fit the pace of learning, ensuring a student focused training programme worked around the needs of the students – after all everyone learns at different paces.