ST. PETERSBURG, FL (February 15, 2017) – Have you ever wondered how sinkholes are formed? Join us at Boyd Hill Nature Preserve, 1101 Country Club Way S., on Tuesday, March 14, from 7:30 p.m. to 8:30 p.m., to learn about sinkholes and the results of a study conducted by the Florida Geological Survey. Free admission. For more information, contact 727-893-7326 or visit www.stpeteparksrec.org/boyd-hill.html.