Waterfall Garden Park, also called UPS Park and UPS Waterfall Park, is a private 60-by-80-foot pocket park in Seattle, Washington, created in 1978 at the original United Parcel Service building in Pioneer Square. It is open to the public during the day and closed at night. The park was designed by Masao Kinoshita with Sasaki Associates and funded by Annie E. Casey Foundation to commemorate UPS's founder, James Casey.