Jonathan Dickinson State Park on Florida’s southeast coast combines major natural and historical significance along the Loxahatchee River. Its habitats include sand pine scrub, pine flatwoods, mangroves, and river swamps, supporting notable biodiversity such as endangered barking tree frogs, Florida scrub jays, and a rare population of four-petal pawpaw. The land also preserves layered human history, from Jonathan Dickinson’s 1696 shipwreck journey to the Army’s secret Camp Murphy radar school during World War II and Trapper Nelson’s later homestead on the river. Opened as a state park in 1950, it remains a center for recreation, conservation, and public concern over protecting a vulnerable ecosystem.