Any suggestions on an overnight/weekend trip not too far from DC?
We're looking at leaving mid-afternoon Friday, and probably coming home Saturday evening. We're thinking along the lines of Richmond, a nature reserve on the Cheasapeake, Philadelphia, the Shenandoahs....somewhere the kids can play, we can check out something cool (the kids are fine with museums and historical stuff - living history places like Yorktown/Jamestown/Williamsburg are great, but we've been there), and relax on what will probably be our only free weekend between now and August.