IANTD Cavern / Cave

Course Overview & Training Objectives

Foundational overhead certification developing entry-level cavern and preliminary overhead awareness within natural daylight and clear sight of the exit. Enforces strict no-decompression limits, a maximum linear penetration of 60 meters (200 feet), and a minimum gas turnaround of the Rule of Sixths for singles or Rule of Thirds for dual systems. Divers train in propulsion techniques that eliminate bottom silt disturbance and maintain team alignment.

Operational Envelope

• Max Depth: 40m (130ft)
• Decompression: No decompression
• Breathing Gases: Air
• Equipment Rig: Double + Stages

Course Structure & Training Requirements

• Course Duration: 2 to 3 Days
• Required Training Dives: 4 in-water dives
• Classroom & Theory: 8 hours instruction

Entry Gates & Prerequisites

Min age 18, 25 logged dives