Torreya State Park
Torreya sits on high bluffs above the Apalachicola, and the trails climb and drop through ravines that hold plant communities more typical of the Appalachians than the Gulf coast, including the endangered Torreya tree the park is named for. The loop trail has genuine elevation gain, which makes it the closest thing to real hiking in the state and a good choice for older children who find flat Florida trails dull. The Gregory House, an 1849 plantation house moved across the river piece by piece, sits on the bluff edge and is open for guided tours on a fixed schedule - once a day midweek, twice at weekends - so check the times before building a day around it. The trails reopened after Hurricane Michael flattened much of the canopy in 2018, and the regrowth is visible along them. It is remote; bring what you need.