Crystal Waves Thailand - a PADI 5 Star IDC Center

When one tank is not enough

PADI Tec 50

Tec 50

As a Tec 50 diver, you show that you’ve developed competency as a tec diver and have the skills to dive to a maximum of 50m. You will make extended range dives using two decompression gases. It’s not easy to reach this level and earning your Tec 50 certification opens the door to deeper diving expeditions.

The Tec 50 course takes you from Tec 45 and allows the successful candidate to independently gain experience as a full Tec Deep Diver. This qualification represents a high level of competency for a technical diver.
The diver is qualified to use air/EANx/oxygen to make extended range accelerated decompression dives. During the Tec 50 course, you make actual decompression dives as deep as 50 meters/165 feet. You’ll use enriched air nitrox and/or oxygen for decompression. Furthermore, you will learn to use desktop decompression software to create custom dive tables and plan your dives. Most importantly this course will qualify the successful candidate to plan and execute technical decompression dives as a team – extending your limits once again.


  • Be a PADI Advanced Open Water Diver (or hold a qualifying certification from another     organization)
  • Be a PADI Rescue Diver (or hold a qualifying certification from another organization)
  • Be a PADI Enriched Air Diver (or hold a qualifying certification from another organization)
  • Be a PADI Deep Diver (or hold a qualifying certification from another organization)
  • Be a DSAT Tec 45 (or hold a qualifying certification from another organization)
  • Have a minimum of 100 logged dives, of which at least:
    20 dives must be enriched air dives 25 dives must be deeper than 18 metres/60 feet, 20 dives must be deeper than 30 metres/100 feet
  • Be at least 18 years old
  • Have a medical form signed by your physician

Crystal Waves Thailand, is the largest PADI technical and recreational diving center in Phuket. Our experienced technical instructors have made a life of teaching technical and cave diving throughout Thailand.
The Tec 40Tec 45, and Tec 50 program is the foundation based behind all technical diving: cave, wreck, trimix and exploration. Join our team to learn the skills that make the cut in the real world of tech diving.

Tec 50 diver with Crystal Divers

Start your adventure with Crystal waves today!

Contact us and book your next course!

Do your PADI course with Crystal Waves Thailand – A PADI 5* IDC Center. We offer PADI scuba diving courses from Discover Scuba Diving to PADI professional development programs and PADI Technical courses. Come explore the best dive sites Thailand has to offer with our experienced team. Contact us today for more information or to book your next Thailand dive adventure.