There’s no fee to enter Biscayne National Park, and you don't pay a fee to access the islands, but there’s a $20 overnight camping fee that includes a $5 dock charge to berth vessels at some island docks. The park concession charges for trips to the coral reefs and islands.
The park is open daily, year-round.
Biscayne National Park (Dante Fascell Visitor Center, 9700 S.W. 328th St., Homestead, FL, 33033–5634. 305/230–7275. www.nps.gov/bisc.)