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

Erika P.
28 April 2026

Lydia was an amazing instructer and I learned a lot from her. I would recommend Goodtime Adventures to anyone that wants to learn how to dive!

Divya J.
26 April 2026

If you are a novice like me, this is an excellent place to try one day sessions for scuba diving and rock climbing. Chris was my instructor for scuba diving, and Danny was for rock climbing. Both are really good, experienced teachers. Highly recommend goodtime for a good time !

Lena S.
26 April 2026

Thank you so much for three fantastic days of diving. Mira was very accommodating to my wishes regarding the dives. :) I hope we meet again somewhere in the world for a post-dive beer or two 😉 It was a pleasure!!

Dylco83
25 April 2026

Had an amazing time diving with the team at Goodtime. Lydia was an incredible instructor who made the whole experience one that will be remembered. Thankyou!

B O.
18 April 2026

Did a Try Dive with my tour group, White Rock is world class! Loved it so much came back for my Advanced Open Water course 2 days later, had an absolute blast. Very professional and fun scuba school, and gorgeous dive sites on this Island! Lydia and Chris were so great, and Liv and Anna were very friendly too. Thanks for giving me my new obsession!

Jomar G.
17 April 2026

Had an amazing dive with the fellas at Goodtime. Ryan, Martin and Mira did a wonderful job, 1000+ recommended. Plus: a couple of days before the dive I rented some climbing gear from them, if ever in Ko Tao def try that, amazing routes and sights.