tdi_4color-LogoLG Mexico Underground & TDI Cave Diver / Trimix

The TDI cave / Trimix program is aimed at providing you the tools to execute safe trimix cave dives.

The Trimix cave course follows on from the full cave diver training were you are limited to that of double tanks, Sidemount tanks and the limit of you single rebreather bailout cylinder, training is conducted in full cave equipment, backmount or sidemount or rebreather. It is often combined with stage cave diver.

The TDI cave Trimix diver course in not intended to provide instruction for all cave diving environments but is targeted to divers who plan on diving for long duration at depth, it is highly recommended that the diver has previous decompression diving experience prior to attempting decompression in caves.

The Trimix cave class provides informative workshops on all things the cave explorer may need including habitat set up and instillation, advanced decompression management, multi stage use, and other exploration techniques.

At Mexico Underground we run the cave trimix diver over 4 days.

The class fee includes all logistics and training materials, the student is required to pay for gases.

After taking and completing my TDI DPV Cave Diver certification what can I do next?

And ranges of cave diving specialties including: cave CCR and survey cave diver.

Our Program Includes:

  • 4 Day of Training
  • 6 Training Dives
  • Online Learning
  • Gases (Air/O2 & Bailout)
  • Transport to the caves
  • Snacks & Refreshments
Breathing System
– Backgas Reg Set.
– Sidemount Reg Set
– CCR. Rebreather
Deco Regulators
Stage Bailout Regulators
Mask + Back up Wetnote Book or Slate
Dive computer & Bottom Timer Compass
Appropriate exposure suit
Suit – Hoot – Boots – Drysuit
Full Bladded Fins.
Preferable with Spring Heel Straps
Wing / Backplate / Sidemount System
2 Cutting Tools Complete Rebreather for Rebreather Training.
PRIMARY DIVE LIGHT 2 Back up Dive Lights
Primary Reel 330ft./100m. 2 x Spool
3 x Line Markers Helmet / Sidemount
Student Prerequisites TDI TRIMIX Cave Course: FULL CAVE
MINIMUM AGE Be a minimum age of eighteen (18)
MIN DRIVER LEVEL Intro to Cave Diver
AMOUNT OF DIVES 50 logged Divers
COURSE DURATION 4-5 days including 8 cave divers to a maximum depth of 130fsw/40msw
EQUIPMENTS / SYSTEM Open Circuit twin set. Sidemount and Rebreather