Ready to go deeper? Learn to plan and perform safe deep dives to 40 m with AQUATAO in Koh Tao.
What Is the Deep Diving Specialty?
The SSI Deep Diving Specialty extends your depth range up to 40 meters. You’ll learn gas planning, depth-related risks, buoyancy control at depth, and safe procedures for deep environments.
The course runs over 2 days and includes theory plus open water dives: 4 dives for Open Water level and 2 dives for Advanced level (requirements apply).
Why Take It in Koh Tao?
- Diverse deep-friendly sites (pinnacles, rock formations)
- Generally comfortable conditions to learn progressively
- Small groups with English, French, Spanish and Thai-speaking instructors
- Safety-first approach: competence, confidence, enjoyment
Prerequisites
Age
From 15 years old
Health
Complete our medical questionnaire or bring a doctor’s certificate
Certification
Open Water minimum (or equivalent). Advanced recommended
Course Schedule
Key goals: identify depth-related risks, optimize air consumption, master buoyancy, learn planning (gas/time, simulated decompression procedures) and communication.
Day -1 late afternoon
Extended briefing (physiology, narcosis, gas management, ...)
Day 1 – Morning
2 deep dives
Day 2 – Morning (only for open water divers)
2 deep dives + reviews + best-practice safety
Why Choose AquaTao?
Small groups
Comprehensive training
High-end equipment
Custom-built boat
International team
Friendly atmosphere
Prices & Packages
After the Deep Diving Course
- Optimize your dives with Nitrox (EANx)
- Explore more pinnacles on Fun Dives
- Build safety skills with Stress & Rescue
- Go pro with the Divemaster program
FAQ - SSI Deep Diving Specialty in Koh Tao (Up to 40 m)
How many dives are included?
Open Water divers complete 4 dives. Advanced divers complete 2 dives. Each includes a full briefing and adapted skill practice.
What is the maximum depth?
Up to 35 meters, depending on your level, progression, and sea conditions.
Do I need Nitrox?
Not mandatory, but Nitrox is highly recommended to optimize no-decompression limits. Bundle packs are available.
Is it difficult?
Training is progressive and safety-focused. Your instructor will tailor the course to your pace and comfort.


























