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.




We had our first diving experience with diving instructors Fabio, Ana, Shai and Chris today and it was amazing! They were very professional, easy going and supportive during the whole process. Very nice experience from the reception at front desk up till the last minute! S&J
⭐⭐⭐⭐⭐ Did my Advanced Open Water with Good Time Adventures and had an incredible experience. My instructor Fabio was great. He really made sure I understood everything with the exact mix of theory and practice, helped me improve my skills and feel more confident in the water. The night dive was something I was nervous about, but he made me feel safe and it’s an experience I’ll never forget. The boat crew was lovely too, instructors Ana and Shai and the other students made the whole thing even more fun. Highly recommend! 🤿❤️
Doing the open water diver at good time was an amazing experience. Our teacher Lydia really took her time to explain everything calmly and understandably, it was perfect to get into the world of diving. She also focused on our weaknesses, so we could improve a lot over the 3 day course. I can 100% recommend doing your open water diving course with goodtimes and lydia!!
Oh my goodness, this place is absolutely incredible! 🤩 Everything was perfect, from start to finish! 💯 What an amazing experience doing the Open Diver Course! Lydia our instructor was the absolute best and made the experience even more wonderful 😄 I would surely come back here for fun dives and doing further certifications.
Had a great scuba diving experience here. Chris was an excellent instructor - patient, professional, and reassuring throughout the dive. He made me feel comfortable and confident as a beginner. Highly recommend!
Did an intro scuba course with Chris and it was amazing. Super patient, clear, and made the whole thing feel fun and safe. Highly recommend.