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0.0 Begin at Iwo Jima, go through Rosslyn, and cross Key Bridge
1.0 Sharp right after bridge thru Key Park down to river side of C&O canal
    Left on towpath and QUICK right down steps to Water St.
    Right on Water St. to trailhead of Capital Crescent Trail
    Go 1/2 mile on Capital Crescent Trail
1.5 Just past 10 mile marker, turn right through culvert
    After culvert, loop to the right and turn right on Canal Rd
    QUICK right into trailhead of Glover Archbold trail
2.0 Follow trail across Reservoir Rd. at street corner
2.8 Follow trail past sign for Wesley Heights Trail
3.1 After this sign, bear right at "Y" split
3.2 Follow trail across New Mexico Rd.
3.5 Follow trail across Cathedral Ave.
4.0 Follow trail across Massachusetts Ave.
5.0 Follow trail to end, you will see a green awning on a store front
    This is Van Ness St... Turn right and cross Wisconsin.
    Continue on Van Ness
5.8 Turn right on Connecticut Ave.
6.8 Turn left on into National Zoo main entrance
    (Optional) Stop at panda enclosure, see Mei and Tian
7.5 Exit Zoo at Rock Creek Park, turn right on paved Rock Creek Trail
    Go way around to the right of the narrow parkway tunnel
10.5 Pass by Watergate and Kennedy Center
11.5 Turn right across Memorial Bridge   
    Go around traffic circle, continuing toward Arlington Cemetery entrance
    Make a right onto bike trail along ramp to 110, then follow trail to Iwo Jima
13.0 Finish at Iwo Jima