Nockamixon State Park is a Pennsylvania state park on in Bedminster and Haycock Townships in northern Bucks County, Pennsylvania, in the United States. The park is one of the most popular in southeastern Pennsylvania, with most tourists visiting in the summer months.RecreationLake NockamixonLake Nockamixon is an artificial reservoir formed by a dam on Tohickon Creek and serves as the centerpiece of Nockamixon State Park. Swimming is not allowed in the lake, but boating is popular, and the park maintains several marinas and boat rentals. Fishing is also popular, and common species include walleye, pickerel, carp, and various kinds of bass and catfish. The water is clean and blue and has a very faint current, since the lake is part of the course of Tohickon Creek, which feeds in midway along the northwestern edge of the lake and discharges at the dam at the southeast corner. Lake Nockamixon is also fed by two other creeks known as Haycock Run, which feeds in at the northernmost point, and Three Mile Run, which feeds in at the southernmost point.