Fountainhead Regional Park features a 2.25 mile looped Nature trail (White Blazes), the trailhead for access to the Bull Run Occoquan Trail (Blue Blazes), as well as shared use Equestrian/ Hiking Trails (Horse-Shoe Blazes). Trail maps can be found at the trailheads and at the Marina Office building. Biking is prohibited on all hiking trails in the park.