Where you’ll find hikes within the National Park System in Florida includes Everglades National Park, with its array of interpretive and hiking trails; Big Cypress National Preserve, hosting the Florida Trail; Biscayne National Park, a scattering of protected islands across Biscayne Bay; and Gulf Islands National Seashore, where the Florida Trail intersects with a few interpretive trails. National Parks are open 24 hours, but parking access may be limited to daylight hours.