Cape Cod Canal Bikeway, a nearly eight-mile stretch between the Bourne and Sagamore bridges. Maintained by the Army Corps of Engineers, it also goes along the third span across the canal - the Cape Cod Canal Railroad Bridge which still carries daily train traffic to the Cape.
The Bikeway, which runs on both sides of the canal, is paved concrete, flat, and wide and even has a bright yellow line down the middle to designate two-way traffic. It's great for walkers, skaters, joggers, and cyclists. The path offers a close-up look at the canal's boat traffic and a shoreline marked with unique homes, natural beauty, and birdlife.
Near the canal's east end in Sandwich is the Cape Cod Canal Visitors Center, which showcases the history and current operation of the canal. Open from May to October, it is located on Moffitt Drive. It is also run by the Army Corps of Engineers; admission is free.