

PADI Tec 40 requirements
To start the PADI Tec 40 course, please make sure you meet the following:
Our approach
Tec 40 is where technical diving stops being an idea and becomes a real training commitment. You are no longer only extending depth. You are learning how to plan, configure, communicate and respond when a dive includes limited decompression.
At Aquarius, your Tec 40 training is taught directly by Harry, your TecRec Instructor, and treated as a standards-led entry into technical diving, not just another certification card. With 33+ years as a PADI Instructor and 25+ years of technical-diving experience, his background includes demanding North Sea and Black Sea conditions, wreck research and long-term SCUBAPRO technical equipment expertise.
Tenerife gives us a comfortable Atlantic training setting, boat-based logistics from Las Galletas and deeper sites that can be reached without long walks carrying heavy equipment.
For extra safety background, DAN explains why setting breathing-gas limits and practicing responses are essential parts of safe dive planning.

FAQ’s PADI Tec 40
Course program
eLearning
Complete all Tec 40 self-study before your first class.
Day 1
Course review, equipment setup, practical applications and first training dive.
Day 2
Dive planning, equipment checks, procedures and second training dive.
Days 3
Gas planning, decompression practice and third training dive.
Day 4
Final training dive, debriefing, certification review and next-step advice.
Real Reviews from Aquarius Divers
Your rating
Overall, on a scale of (0-5 stars), how highly would you recommend this PADI Tec 40 course?
Recommended Courses After PADI Tec 40
After Tec 40, divers usually continue with training that expands depth, decompression planning, emergency management and technical-diving discipline. These are the next steps if you are ready to progress beyond limited decompression diving.






