Level
Advanced
Course
Duration
1.5
Days
Max Depth
40
Meters
Cost
฿8,000
Thai Baht
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.
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
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.




Chris is the LeBron James of dive instructing
I had an amazing experience doing the 3-day open water scuba course with Shai!! He was extremely knowledgeable and encouraging, and I felt confident and safe the whole time. Each day was brilliant, learning and practicing new skills while having some fun at the same time. I couldn’t recommend this experience any more highly!
I can’t recommend Goodtime Adventures enough! From start to finish, everything was smooth, fun, and incredibly well organized. Shoutout to my amazing instructors, Shai and Ana, for making me feel confident, safe, and relaxed underwater. Their positive energy and professionalism made the whole experience even better. And a huge thank you to Beth for taking the most incredible underwater photos! I absolutely love every single shot. Thank you all for such an unforgettable diving experience. I’ll definitely be back next time I’m in Koh Tao!
Had the best time diving with this company! This was my first time ever scuba diving and I absolutely loved it. Special thank you to my dive instructors Shai and Ana - you made my experience. It was so much fun to have this memory documented with photos by Beth 🫰
Had the BEST time at good time. The instructors here are amazing and hold the highest standards. Special shoutout to Ana my open water instructor and Carmen my advanced open water instructor, I feel way more confident in my diving and skills. Thanks Charlie for being so accommodating, definitely recommend choosing this for a more one on one dive experience!!!
On June 29th, I did a refresh dive with Lydia as instructor. It had been quite a while since my last dive, and I thoroughly refreshed the basics, both theory and practice. Lydia is amazing! She is a skilled communicator, has a pleasant voice, knows what she is talking about, and takes her time with you. The two dives were relaxed, and she knows how to avoid the crowds underwater. I felt safe and am entering the water again with full confidence. Thank you! And Bente... thank you for your tips! Regards, Joris