Manatee Springs Run 4: Main line and Milk Tunnel

On 10/11/2025 two Karst Underwater Research divers gathered data from the Milk Tunnel in the cave system of Manatee Springs State Park, Levy County, Florida, USA. KUR divers Ken Sallot and Josh Lange ran the YSI EXO3 datasonde into the Milk Tunnel approximately 1400 feet from the main conduit.The datasonde measured water temperature, pH, specific conductivity and dissolved oxygen throughout the dive. A marker (REM) was left at the location that the team turned to return to the main tunnel. After exiting the milk tunnel the dive team continued upstream to the fracture (fissure) a karst feature approx. 4500 ft penetration upstream from Friedmans Sink then returned to exit at Catfish Hotel Sink..Total dive runtime was 190 minutes, a dive computer download along with timestamp information to help synchronize the datasonde data with various parts of the cave are included.