I'm cheating here because I live in Washington, DC, and in an area close to Rock Creek Park. But in order if time to get there: the hiking trails of Rock Creek

I'm cheating here because I live in Washington, DC, and in an area close to Rock Creek Park. But in order if time to get there: the hiking trails of Rock Creek Park, about 10 minutes walking; the nearest riding stables, about 10 minutes driving; fishing at Roaches Run, 25 minutes driving in light traffic.