D&R Canal Towpath: Prallsville Mill and Lock Trail is a 14.5 mile point-to-point trail located near Lambertville, New Jersey that features a river and is good for all skill levels. The trail is primarily used for hiking, road biking, and canoeing and is accessible year-round. Dogs are also able to use this trail.
Very beautiful scenic view of the Delaware River, along side the tow path where old style barges use to be used for cargo transport. It's only 4.2 miles of easy walk on pretty level gravel terrain.