Time Out says
Unfurling alongside the city’s spectacular waterfront, the RiverWalk is a 5.5-mile promenade boasting outstanding views of the Detroit River beyond. During the summer months it offers a cooler place to exercise than the heat of the city, with locals flocking in their thousands to run, walk or cycle its picturesque course. There are plenty of way stations en route too—for eating, drinking and bike or kayak renting. For those visiting for the first time, there are also free RiverWalk tours given by the excellent Detroit Experience Factory (23 Monroe St, 313-962-4590).