john h hanzl (author)

On July 4th I was five days into some intensive dive training in the caves of north central Florida. Unfortunately that particular day had a less-than-desirable outcome: I ended up getting...

This past December I packed up a mountain of gear and drove down to cave country in northern Florida to get my MOD 1 training on my Sentinel rebreather. It was,...

Sit down, take a break from reading Out of Hell’s Kitchen, and check out this presentation I gave one diving what some people call the “Mount Everest of SCUBA diving” –...