Killens Pond State Park is a Delaware state park located south of the town of Felton in Kent County, Delaware in the United States. The park surrounds a 66-acre pond known as Killens Pond located along the Murderkill River. Amenities available include boating, fishing, hiking, playgrounds, and picnic areas. The park also features a nature centeā¦Killens Pond State Park is a Delaware state park located south of the town of Felton in Kent County, Delaware in the United States. The park surrounds a 66-acre pond known as Killens Pond located along the Murderkill River. Amenities available include boating, fishing, hiking, playgrounds, and picnic areas. The park also features a nature center, year-round campgrounds, and a water park that is open during the summer months.