Between Orleans and St. Aubin streets, from Gratiot Avenue to Atwater Street; detroitriverfront.org
Formerly a Grand Trunk Western Railroad line, the Dequindre Cut has been converted into a greenway that can accommodate bikers, skateboarders, joggers, and more. It's also a great way to take in art as you exercise, as the overpasses contain many examples of graffiti masterpieces along with more recently commissioned murals.