Phantom Springs Cave is one of the deepest sprawling underwater cave systems in the nation, according to the Tampa Bay Times. During his more than two decades of cave diving, Hemphill helped map ...

During his more than two decades of cave diving, Hemphill helped map and document “many of the most unique and deepest underwater cave systems in the United States,” his biography page on KUR ...

Cave Crave - The underground exploring VR Game Launches on Meta Quest and PlayStation VR2! Explore the depths like never ...

DADE CITY, Fla. (WFLA) — The cave diving community lost a true modern-day explorer this past week. Brett Hemphill of Dade City was diving with his team of explorers with the Karst Underwater ...

British cave-divers John Volanthen removes his diving suit after walking out from Tham Luang Nang Non cave on June 28, 2018 in Chiang Rai, Thailand. [Photo: Linh Pham/Getty Images] ...

Record-breaking U.S. cave diver Brett Hemphill died at the age of 56 after failing to resurface during a dive on Oct. 4 in Texas' Phantom Springs Cave.

Brett Hemphill, a cave diver with Karst Underwater Research, prepares for a dive into the Weeki Wachee Springs in 2009. Hemphill died while diving in a deep Texas cave last week.