Cedar Point Shores Waterpark opened Saturday, May 23 and runs through Monday, Aug. 31, 2026, according to the park's announced schedule as reported by WXYZ. That closing date falls before Labor Day, which is Sept. 7 in 2026, so the water park is not scheduled to operate over the holiday weekend. The water park runs on a separate schedule and separate admission from the main amusement park, and it operates on select days rather than daily, particularly at the start and end of its season.
Boaters planning a late-summer stop that includes the water park have a hard cutoff of Aug. 31, before the Labor Day weekend.