Hole in the Wall Cave is located on the Millpond in Jackson County, Florida. What started out as a fairly significant cave with 8238 feet surveyed by Sheck Exley and friends in the late 70s has turned into one of the largest caves in Florida with 33,000 feet of passage (as of summer 2017) Exploration and survey are ongoing. In July of 2017, I published a finalized map, which can be purchased at Cave Adventurers:
Posing with an interim version of the map at the NSS-CDS convention.
KISS Rebreather dive at Hole In The Wall Florida with Edd Sorrensen of Cave Adventurers, Mick Micallef, and Jason Richards on camera.
Hanging out on deco with Chrissy after a survey dive.