A bike ride following the two sides of the Delaware River using the Delaware Canal towpath on the Pennsylvania side and the Delaware and Raritan Feeder Canal towpath on the New Jersey side was just about perfect for us older bike riders. The path is smooth, the towns and scenery along the route, expecially in the spring are lovely. There are many interesting places to see along the route.
Before starting a trip you can get a lot of information on these two bike paths.
Biking Along the Delaware Canal is an excellent source of bicycling information for the two paths. It has descriptive and historic information, pictures and a map showing the two bike paths, river crossings between them and places to park.
The homepage for the Delaware Canal State Park has general information on the bike path. This link has an address for getting a map and park guide.
Check the homepage of the Delaware and Raritan State Park to learn the history of the canal. There is a link to a printable map which shows parking locations along the towpath. It also has descriptions of several interesting places along the Main Canal and the Feeder Canal and address to write for a map and guide.
Detailed information about historic districts in Bucks County can be found here. Several of these districts are along the canal.