PADI Tec Trimix 65
Break past 50 metres with helium — clear-headed deep diving to 65 m on normoxic trimix.
- Free cancellation up to 24h before
- Confirmed within 3 hours
- Pay on arrival — cash or card
- All equipment included
- Duration
- 4 days
- Total dives
- 4
- Max depth
- 65 m
- Group size
- Max 2
- Min age
- 18+
- Languages
- English · Arabic · German
What PADI Tec Trimix 65 actually involves
The deep-diving qualification beyond the Tec Deep ladder. Tec Trimix 65 introduces helium to your breathing mix so you can dive to 65 metres with a clear head, minimal narcosis and controlled oxygen exposure. You'll learn trimix blending theory, best-mix selection and extended decompression. Training dives with a technical instructor at strict small ratios, with twinsets, stages and trimix fills included.
Your schedule
- 1 Day 1
Trimix theory + confined skills
Why helium, best-mix and equivalent-narcotic-depth selection, oxygen and helium exposure limits, and blending fundamentals. Confined session rehearsing bottom-gas and multi-deco-gas switches on a trimix rig.
- Best-mix selection
- END & CNS limits
- Trimix blending theory
- 2 Day 2
Training dives 1 & 2
Trimix dives in the 45–55 m range applying multi-gas decompression, verifying the clarity helium brings versus deep air, and refining team procedures at depth.
- First trimix dives
- Multi-gas deco
- Narcosis comparison
- 3 Days 3–4
Training dives 3 & 4 — to 65 m
Full-range dives to 65 m on normoxic trimix with complete decompression schedules and simulated failures, qualifying you for independent trimix diving to 65 m.
- 65 m on trimix
- Extended deco
- Certification dive
What's included (and what isn't)
What's included
- Certified PADI Tec Trimix instructor, max ratio 1:2
- Twinset (manifolded doubles) + backplate & wing
- Two deco / stage cylinders
- Normoxic trimix bottom gas and deco-gas fills
- PADI Tec Trimix 65 eLearning, materials & certification (PIC)
- 4 technical boat dives
- Hotel pickup and transfers
- Hot lunch and soft drinks on every dive day
- Dive accident insurance for the course
Not included
- Tips (optional)
- Diving camera rental (€20/day)
Trimix courses are quoted per project. A deposit secures your instructor, gas blend and dates once your plan is confirmed.
What you'll be able to do
- Normoxic trimix theory and best-mix selection
- Managing helium and oxygen exposure at depth
- Extended multi-gas decompression planning
- Deep team procedures and failure management
- Independent trimix dive planning to 65 m
FAQ
Why add helium instead of just diving air deeper?
Below about 40 m, nitrogen narcosis and gas density climb sharply. Replacing some nitrogen with helium keeps you clear-headed and lowers breathing resistance, which is far safer for the demanding decompression that deep dives require.
Do you always have trimix and helium available?
We blend to order. Because helium is costly and price-volatile, we confirm your gas plan and give a firm all-in quote before the course — rather than advertising a fixed figure that wouldn't hold.
Related courses
PADI Tec 45
Full decompression diving to 45 metres — single stage and deco cylinders, real staged stops.
PADI Tec 50
The top of the PADI Tec Deep ladder — 50 metres, two deco gases, full mixed-gas decompression.
What our divers say.
Sound right?
Message us on WhatsApp with your dates — no deposit, no commitment.

