GUE Deep Primer

Prepare for Deeper Dives

GUE Deep Primer is a focused step for divers who want to understand the added demands of deeper recreational diving before moving into more advanced training. GUE also labels the course as Triox Primer and explains that it may be conducted using nitrox 32 or triox 30/30. The course is built around gas choice, depth-related stressors, ascent control, and the discipline needed to keep a deeper dive organized and comfortable.

The course is intended for divers with an existing GUE foundation, not for new divers. GUE lists prerequisites that include minimum age 16, fitness to dive, swimming ability, non-smoking status, and completion of GUE Open Water Diver, GUE Performance Diver, or GUE Fundamentals. Applicants also need at least 15 non-training dives after one of those prerequisite courses, with additional drysuit experience requirements if the class is conducted in a drysuit.

Training outcomes include skill refinement, familiarity with decompression theory and practice, correct ascent procedures, and understanding how helium can reduce narcosis, gas density, carbon dioxide stress, and post-dive nitrogen load. GUE describes the primer as normally two days, with at least four dives and 16 hours of classroom, land-drill, and in-water work. In High Springs, Florida, it is a useful bridge for divers preparing for more demanding recreational, technical, or project diving.