I rode a bike path that goes from Vienna VA out to Louden County (past Dulles Airport, etc.). Not so bad going away from D.C., but towards D.C. the path was brutal - way too many road crossings, joggers, dog walkers, etc. Our bike path up here in Orange Cty NY is fantastic in comparison - 1/10 as many road crossings and way fewer people. I'm on that path several times each week, very grateful to have it up here.