GUE Recreational Diver 3 (Master Diver)

Course Overview & Training Objectives

GUE's pinnacle recreational certification preparing divers for deep exploration to 39m using manifolded twin cylinders, single decompression bottles, and helium-rich trimix mixtures. Integrates advanced decompression theory, gradient factor modeling, and limited staged decompression obligations capped at 15 minutes. Delivers mastery of double-tank valve management and gas-switch contingencies in demanding conditions.

Operational Envelope

• Max Depth: 39m (130ft)
• Decompression: 15 minutes (unadjusted)
• Breathing Gases: Triox 21/35 or 30/30 (Nitrox Deco)
• Equipment Rig: Double

Course Structure & Training Requirements

• Course Duration: 5 Days
• Required Training Dives: 8 in-water dives
• Classroom & Theory: 40 hours instruction

Entry Gates & Prerequisites

Min age 18, GUE Rec 2 or Fundamentals, min 75 logged non-training dives (min 25 on doubles), non-smoker