Originally Posted by
dontippet
Thanks for the information. I believe the minimum one way ticket is $2.10. For a family of four, $16.80 minimum for a round trip seems hefty, plus the $8 initial cost. We are staying at the Rosslyn Holiday Inn so we'll probably do a combination of Metro and driving. We'll probably drive to the zoo, Teddy Roosevelt memorial, but take the Metro to the US Capitol. mall, and Arlington.
For Theodore Roosevelt Island, it probably makes sense to walk, since your hotel is so close to the Mt. Vernon trail entrance, and you'd otherwise have to drive in a giant loop since the only car access to the island from the NB lanes of the GW Parkway.
http://www.nps.gov/this/planyourvisit/directions.htm