Jeff Johnson

Deciding which unit is to be your first CCR can be a overwhelming experience. Keep in mind the joy of learning while searching out, compiling and comparing units. Having no in depth, long term experience on any ccr makes it difficult to assess a “tryout” dive on a particular unit.  It takes a significant amount […]

Advanced Cave introduces the Full Cave Diver to equipment, planning and skills required to conduct staged dives.In this course extensive dives will be made using one or two stage bottles to conduct the “bottom” portion of the dive.Further development of Full Cave skills in complex dives their planning and execution.Qualifies Diver to: Safely plan, organize

350.  minimum 2 students, course materials 65.500.  minimum 3 students   course materials and C card fee: 50. 650.     private: 900. min 3 students 750.     private: 1000. min 2 students500.     private: 700. min 3 student700.     private: 900. min 2 students800.   combined with Adv. Nitrox 1250.    private: 1400. w Ad eanx: 1600.   

Dive 25 dives and 35 hours to depths of 130 ft or less.  Then consider a ccr Normoxic Trimix course with HE to depths up to 200 ft.  If you buy the unit in the off season, you are giving yourself the time to depths less than 130 ft.  You will also giving yourself the

Decompression Gas mixtures:        EANx-qualified divers may breathe up to EAN 40 during decompression. .       Advanced EANx-qualified divers may breathe up to 100% O2 during decompression.        Technical Divers or students enrolled in the Technical Wreck Program may breathe any EANx mixture or oxygen during      This course may be taught in conjunction with a Normoxic Trimix presented

Cave diving is one of my favorite pastimes. What do I enjoy about cave diving?I have come to appreciate the “get in the water and dive as long and as often as I want to dive” dive plan. It’s just between my buddy and myself and based on our training and experience. I enjoy the

Rebreathers in general, and closed-circuit rebreathers in particular, provide three fundamental advantages over open-circuit scuba systems: more efficient use of gas, optimized decompression characteristics, and near-silent operation.Perhaps the most significant advantage that closed-circuit rebreathers (and to a lesser extent, semi-closed rebreathers) offer is greatly increased gas efficiency. Under normal circumstances, a diver only uses a

This program is designed to train divers in extended wreck penetration diving and the technical use of eanx for diving with oxygen utilized for decompression.Wreck penetration hazards are much different than those found in a cave. Those differences are discussed, appropriate planning and protocols presented along with variations in diving techniques.Qualifies Diver to make extensive

“…rebreathers, I have learned some important lessons (Comper & Remley, 1996; Pyle, 1996d). After my first 10 hours on a rebreather, I was a real expert. Another 40 hours of dive time later, I considered myself a novice.When I had completed about 100 hours of rebreather diving, I realized I was only just a beginner.Now