PADI Tec Trimix 65

Tec 65This course opens up the advantages of trimix to the diver, and divers are qualified to make multi-stop decompression dives that employ EANx and oxygen for accelerated decompression, and any trimix with an oxygen content of 18% or more allowing the diver to dive to a maximum depth of 65 metres/210 feet.

Once you start diving with helium, it opens up a whole new world for you. Wrecks sitting beyond 50m now become accessible to you. Live-aboards to places like Truk Lagoon and the World War wrecks of the Gulf of Thailand now open up to you as a Tec 65 Trimix diver.
The PADI Tec Trimix 65 course is intended to extend the depth range of technical divers already trained and qualified to use air, enriched air and oxygen for technical decompression dives beyond 50 meters /165 feet.

This course is for Tec 50 divers (or those holding a qualifying certification from another training organization). The course extends your depth range capabilities by training you to use trimix (a blend of helium, oxygen and nitrogen).

You will:

• Plan and execute at least five dives using EANx and trimix blends
• Use decompression software to create custom dive tables and dive plans
• Make training dives as deep as 65 metres/210 feet


• 5 days, knowledge development, 1 confined or limited open water dive and 4 open water dives.


1. Be a PADI Rescue Diver (or hold a qualifying certification from another organization and having proof of CPR and first aid training with the previous two years).
2. Be certified as a Tec 50 (or hold a qualifying certification from another organization)
3. Be at least 18 years old
4. Have logged at least 100 dives
5. Have a medical form signed by your physician.


• Tec Trimix Diver Crew-Pak, which includes all required materials (Tec Trimix Diver Manual, deep stop calculation table, trimix decal and emergency procedures slate).

** Important Notice: The course fee does not include gases used. You’ll need to fund the trimix used by both you and your Instructor. PADI materials are not included in Course Fee.

Course Duration: 5 days

Dive Tec Rec Chart


+ Helium

To book this course, a 20% ( ฿8,000 ) deposit is payable now. The balance is due on arrival.