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.




This place is like no other good time adventures in Thailand 😉! Great set up and amazing waters. Joe (the dive instructor) is like Sebastian from the little mermaid how he glides through the water and so helpful throughout!
I took the Open Water course with Goodtime and was thrilled. A huge thank you to Lydia, who is an excellent instructor, and to the entire team! Everyone is incredibly friendly and helpful, and I was able to admire some of Koh Tao's most beautiful dive sites. Highly recommended!
Really Good timing dive on beautiful spots, thanks to our awesome instructor Lydia 😀♥️🐠🐡🌅🌊
Amazing dive in mango bay and white rocks. Thanks to Lydia and all the staff.
I did the Open Water Diver in 3 days in a group of three. Amazing expierence with best conditions in sight under water and the weather. Even the skills we could learn in the lagoon right in front of the diving center. Lydia is an energetic and enthusiastic teacher, so the theory wasn't boring and during the dive trips we felt 100% save. Gily joined us on the last day and took some nice videos. Thanks for that buddy!
We had some wonderful dives with guides Daan and Mira from Goodtime Adventures. Relaxed diving from their own boat, followed by drinks and snacks at their lovely, cozy beach bar. The crew always brings such a great vibe. We truly enjoyed it. Best regards!