TDI Advanced Wreck

Course Overview & Training Objectives

Provides comprehensive technical overhead training for divers conducting full wreck penetration past the limits of ambient daylight. The operational envelope allows exploration deep into interior engine rooms and cargo holds with planned staged decompression stops and accelerated deco gases. Strict emphasis is placed on gas matching, the Rule of Thirds, guideline protocol, and emergency mitigation in zero-visibility overhead environments.

Operational Envelope

• Max Depth: 55m (180ft)
• Decompression: Unlimited accelerated deco
• Breathing Gases: Air
• Equipment Rig: Double/Sidemount + Stages

Course Structure & Training Requirements

• Course Duration: 4 Days
• Required Training Dives: 6 in-water dives
• Classroom & Theory: 12 hours instruction

Entry Gates & Prerequisites

Min age 18, 50 logged dives