scuba divers swimming under water

Explore further with the SSI Deep Diving Specialty

SSI Deep Diving Specialty

Unlock the mysteries of the deep! This course equips certified divers to explore depths up to 40 meters safely, revealing new dive sites and unique marine encounters in Koh Tao’s best dive sites like Chumphon and Sail Rock!

Level

Advanced

Course

Duration

1.5

Days

Max Depth

40

Meters

Cost

฿8,000

Thai Baht

The Learning Experience

Perfect for certified divers wanting to enhance their underwater experiences, the SSI Deep Diving Specialty Course offers a comprehensive exploration of deeper diving. This program includes theoretical lessons combined with three supervised deep dives, where you’ll learn critical safety protocols, dive planning, and techniques necessary for deeper exploration. Upon completion, you’ll be certified to dive down to 40 meters, opening the door to exhilarating deep-water sites and encounters with unique marine life rarely seen at shallower depths.

Ready to start your adventure?

What’s included

What to bring

Prerequisites

Itinerary

09:00-11:00 Deep diving academic session
11:00-11:30 Air consumption check and dive planning
11:30-12:30 Break
12:30-17:00 Deep dives 1+2 (max. 30m)
17:00-17:30 Debrief

08:00-12:00 Deep dive 3 (max. 40m)
12:00-12:30 Certification and celebration :)

SSI Deep Diving Specialty

Unlock the mysteries of the deep! This course equips certified divers to explore depths up to 40 meters safely, revealing new dive sites and unique marine encounters in Koh Tao’s captivating waters.

All activities start the day after arrival on the island.

฿8,000

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

google Rating
4.9
Based on 1,426 Reviews
Robbie Kolonic
24 December 2025

Completed my Open water diver course here with Joe and Ryan. Though the whole team was great, really friendly, informative and patient. Joe was fantastic and made me feel really comfortable underwater, can't thank him enough. If I decide to do more advanced programmes it'll probably be with these guys, can't recommend them enough!! ❤️

marlon f
24 December 2025

The Freediving course is awesome, Such an amazing experience! Titou is a very mindful, respectful and funny instructor, we enjoyed every session a lot! Thanks🙏🫶

Agata Wszołek
22 December 2025

Thank you so much to Lidia, Zack, and Andreas for such a fantastic diving experience! Your kindness, guidance, and positive energy made the day truly special. We felt comfortable and supported throughout, and our children had a blast! It was a wonderful adventure for the entire family — one we’ll always remember! P.S. Another beer for you guys ! :)

Jakub Wszolek
22 December 2025

Hugo thanks to Lydia , Zack, and Andreas for an unforgettable day of diving! You were amazing — patient, professional, and so much fun! We felt safe and well taken care of the whole time, and our kids absolutely loved the experience. It was the perfect introduction to scuba diving for the whole family. Highly recommended!

Andrei Pamparau
19 December 2025

I have done my first 2 recreational dives with Goodtime Adventures after passing my open water certification. Extremely profesional and friendly atmosphere. Thank you Andrea for being my guide for such an amazing experience.

Ana Paduraru
19 December 2025

I had a wonderful try dive and couldn’t have asked for a better first experience. My instructor, Ana, was incredibly patient, calm and supportive, explaining everything step by step and helping me feel confident underwater. Same for Andrea, great instructor 💪. Thank you so much for your professionalism and positive energy — it was a beautiful experience!