Some text copied from National Park Service website.
Theodore Roosevelt Area
13165 Mt. Pleasant Road
Jacksonville, Florida 32225
The Theodore Roosevelt Area is located in Jacksonville, Florida about 14 miles northeast of downtown. The Theodore Roosevelt Area is associated with Fort Caroline National Memorial. More information about the Theodore Roosevelt Area, including park and trail maps, can be picked up at Fort Caroline.
If you are looking for a mountain bike trail, keep going 5 miles east on Wonderwood Expressway to Hannah Park at the ocean for the best mountain bike trails in NE Florida.
About this TrailOpen appx dawn to dusk. Trailhead parking area holds about 12 cars. Only restrooms are at trailhead. You can access this trail from the Timucuan and Spanish Marsh trails! A nice walk in the woods and a beautiful view of the marsh on a raised platform over Round Marsh.
Directions to Trailhead (or put-in on water trails)From I-95 south of Jacksonville: Traveling up the east coast of Florida from the south via Interstate 95, leave I-95 at Florida Route 9A (Exit #337). Follow 9A to Monument Road. Exit at Monument Road, follow the brown signs to the right, and travel to Fort Caroline Road. Turn right. It is less than one mile to the Theodore Roosevelt Area; the entrance will be on your left.
Notes on Difficulty RatingWide and easy trail, over ten feet wide on main trail. Bikes welcome on main trail only, which is sandy in spots and there are multiple tree roots. Signage is good. Benches at 1/4 mile, creek bridge, graveyard, house site, and more.