TDI Mine Diver – Level II
Execute advanced mine penetrations, manage complex navigation, and operate confidently inside submerged overhead systems
Duration
4 days, 8 dives
Max Depth
40m / 130ft
Level
Advanced Technical Overhead Environment
Next Step
Mine Exploration / Expedition Diving
Overview
The TDI Mine Diver – Level II course is the advanced stage of TDI’s mine diving development program, expanding the diver’s capability into complex mine penetration and advanced overhead environment procedures.
Building on Mine Diver – Level I, this programme focuses on:
- advanced dive planning,
- jumps and gaps,
- circuits and traverses,
- and complex guideline management inside artificial overhead environments.
Training develops the ability to manage:
- structural hazards,
- navigation complexity,
- entanglement risks,
- and emergency procedures under increased task loading.
At N9BO℠, this course is delivered as high-discipline overhead environment training, preparing divers for advanced mine exploration and expedition-level penetration diving.
Course Facts
- Course name: TDI Mine Diver – Level II
- Level: Technical mine diver
- Minimum prerequisites: Minimum age 18, TDI Mine Diver Level I, TDI Intro to Cave Diver (or equivalent)
- Ratio: Maximum of 3 students per instructor (small groups recommended for quality training)
- Configuration: Full advanced overhead environment equipment including dual cylinders, reels/spools, jump/gap reels, and redundant life-support systems
- Depth / environment: Maximum depth 40m / 130ft, mine penetration environment, jumps, gaps, circuits, and traverses permitted, continuous guideline mandatory, rule of thirds gas management applies, decompression diving permitted within diver’s qualifications
- Format: Academic development + land drills + mine dives
- Duration: Typically completed in 4 days (Minimum 8 mine dives with at least 240 minutes accumulated bottom time, conducted at 3 different sites, at least 1 site not previously used during Mine Level I training)
What You’ll Learn
- Plan and execute advanced mine dives
- Identify and manage collapse hazards, entanglement points, vertical shafts, structural instability
- Conduct jumps and gaps, circuits and traverses, complex guideline navigation
- Deploy and manage primary reels, safety reels/spools, directional and non-directional markers, gap reels
- Practice lost line drills, lost diver drills, zero visibility exits, touch-contact navigation
Prerequisites
- Be at least 18 years old
- Hold TDI Mine Diver – Level I certification
- Hold TDI Intro to Cave Diver certification (or equivalent)
- Be medically fit for diving
FAQ
Mine Diver Level II introduces:
- Jumps and gaps
- Circuits and traverses
- Complex mine navigation
- Advanced penetration procedures
This is the full operational mine diver level.
You must complete:
- Minimum 8 mine dives
- Minimum 240 minutes total bottom time
- At 3 different sites
Yes — decompression dives may be conducted:
- Within the qualifications of both diver and instructor
You will learn:
- Jumps and gaps
- Circuits and traverses
- Advanced mine navigation
- Complex guideline management
- Advanced hazard assessment and emergency procedures
You are qualified to conduct advanced mine penetration dives without direct supervision, including circuits, traverses, and complex guideline procedures within the limits of your training and gas planning.
Ready for Advanced Mine Penetration?
Send us your certifications and overhead environment experience. We’ll train you to operate inside complex mine systems with precision, discipline, and control.
Go Pro with TDI Mine – Level II Instructor
Advance into mine diving instruction and train divers in advanced penetration procedures, mine hazard management, and complex overhead environment operations.
