For over 20 years with the support and companionship of friends and team members alike, Brett Hemphill has utilized and developed several cave diving configurations in side-mount and CCR which have assisted him with exploration, mapping and research of some of the deepest, largest & most unique underwater cave systems in the United States. Additional research and exploration locations includes; Bahamas, Cay Sal Banks, Dominican Republic & Yucatan Peninsula.

Brett Hemphill is currently the Director for KARST Underwater Research