Wompatuck State Park is a state-owned, public recreation area of about 3,500 acres in size located primarily in the town of Hingham with portions in the neighboring towns of Cohasset, Norwell, and Scituate, Massachusetts, in the United States. In addition to a large campground and an extensive trail system, the park is noted for the free spring water that can be obtained at Mt. Blue Spring, which has been in operation since the mid-19th century.