DPV Cave


This course is designed to teach trained cave divers how to utilize Diver Propulsion Vehicles (DPVs) in the cave environment. Divers will learn about safe DPV use, DPV components, and care and maintenance.

 Students will learn to plan dives that may incorporate extended penetration, longer bottom times, complex dive planning, and proper methods of gas management. 

Course Structure 

Open Water Execution 

1. Students must complete 3 stage cave dives with a minimum accumulated bottom time of 90 minutes. 

Course Structure 

1. TDI allows instructors to structure courses according to the number of students participating and their skill level 


1. The minimum number of classroom and briefing hours is 4

Required Equipment 

The following equipment is required for each student: 

1. Dual cylinders, volume appropriate for planned dive, student gas consumption 

2. Two independent first and second stage regulators; one regulator equipped with a long hose at a 

recommended minimum length; 2 metres / 7 feet 

3. Submersible pressure gauge 

4. Buoyancy compensator device (BCD) with power inflator 

5. Exposure suit adequate for diving environment 

6. Mask and fins, NO snorkel 

7. Two line cutting devices 

8. Three battery powered lights; 1 primary and 2 back-ups, each with a with burn time suitable for the planned dive time 

9. One primary cave-diving reel with length appropriate for intended dive 

10. Safety reel with a minimum of 37 metres / 125 feet of guideline 

11. Appropriate number of gap and jump reels with 15 metres / 50 feet of guideline 

12. Computer, watch or bottom timer and depth gauge 

13. Slate or wet notes with a pencil 

14. Submersible dive tables or back up dive computer 

15. Three directional line arrows 

16. One non-directional line marker 

17. DPV adequately configured for the cave environment 

Student Prerequisites 

1. Minimum age 18 

2. Certified as a TDI Full Cave Diver or equivalent 

© Aquatech Productions 2013