Mark from Kernersville NC on 5/3/2019 3:56:36 PM:
I was just there. If you go over Arlington bridge, then pick up the rock creek trail to the left. Turn into the marina/water front and follow the the walkway next to Potomac. Then follow signs for crescent trail. C&O is parallel to the right. It’s confusing right there because of construction. Maps look like you can get on the C&O there after waterfront, but you can only get to crescent trail.