Took my boys on a DC bike ride over the weekend for the first time. Parked at Gravelly Point, crossed the 14th Street Bridge to the Jefferson Memorial, headed by the Washington Monument, around the White House, and then back to Gravelly Point. About 8 miles round trip. Great weather. I think they actually enjoyed it.
My oldest son suggested maybe parking at Gravelly Point and biking to the zoo. Looks like it's only 7 miles and should be a pretty flat ride along the Potomac and Rock Creek so definitely doable. Looks like the zoo has bike racks so that could be a fun ride on a nice day, check out some animals, and then head back.
Any other ideas of some good biking with kids? They'd be interested in biking if there some neat things to look at along the way or an interesting destination. Something like the W&OD Trail would probably bore them, unless I'm not just not aware of a stretch that might be interesting to a kid. I'm thinking biking across the Woodrow Wilson Bridge between Old Town and National Harbor could be fun. But, looks like the paved trail ends short of National Harbor and there's some kind of rocky or sandy path?