By bus
Potomac is not very public transport friendly, but there are a couple bus routes worth noting. The T2 Metrobus (http://wmata.com/bus/time...) runs every half hour throughout the day along River Rd and Falls Rd between the Friendship Heights and Rockville Metro stations. Ride on Bus #29 goes from the Bethesda and Friendship Heights Metro stations to Glen Echo Park see below.
By car
The principal routes leading northwest into Potomac from D.C. are River Rd and the Clara Barton Pkwy which runs parallel to the smaller MacArthur Blvd. From Bethesda, take either River Rd or Democracy Blvd from Old Georgetown Rd. From Rockville, the main route is MD-189 Great Falls Rd. From Virginia, bridges across the Potomac River are very fewâyou will almost certainly need to take the Beltway to the Clara Barton Pkwy, River Rd, or Democracy Blvd exits for Democracy Blvd, head towards I-270 instead of continuing on I-495 at the split.