The Detroit International Riverfront is a redeveloped waterfront in the US city of Detroit, supported by public and private investment totaling several hundred million dollars. Key public spaces include the riverwalk, the Dequindre Cut Greenway and Trail, William G. Milliken State Park and Harbor, and a cruise ship terminal at Hart Plaza. The riverfront hosts major events including the Detroit Electronic Music Festival, the Detroit Jazz Festival, and the Detroit–Windsor International Freedom Festival. The last dates to 1959 and was originally a joint-venture with the nearby city of Windsor, Ontario. Since 2007, it has been split into separate events, but Detroit’s fireworks show retains Canadian elements such as dual national anthems and a flag flown by helicopter. The Detroit International Riverfront was voted the best riverwalk in the United States by readers of USA Today in 2021, 2022 and 2023.