With nobody else around to ride with or wait on, started out about 6:45 am with an aim toward "about 50". Mission accomplished. Also enjoyed very, very light traffic on the on-road segments. The first hour or so brought to mind those Iowa mornings where it took about 10 miles to gently shake off the mental cobwebs and start . Might be doing this again. Route was mainly straight down Beach Drive into DC to about Klingle/Porter, then climb what is described on the sign by the trailhead as the "moderate grade" of the Klingle Valley trail up to the Cathedral area. Do not want to see what a non-moderate grade looks like. Then wander back north to the Capital Crescent Trail, the connector to which from Mass Ave is NOT rideable, followed by some meandering through 'hoods I can't afford to live in ... Fairly happy with the route through both upper NW DC and Bethesda -- lots of 4-way stops which amount to yields for bikers ;-) Not as happy with the navigation on the Garmin (see numerous go-backs after "OFF COURSE" popped up. Not sure if I'm doing it wrong but am thinking regular ol cue sheets might work just as well or better. For turns that were close together the Garmin was totally confused and sloooow to react.