Indian Island County Park is a 275 acre park located at the estuarine mouth of the Peconic River. Camping is popular with tent and trailer site open to individuals and camping club. Restrooms and showers facilities are available for campers. This park offers one of the finest picnicking sites in Suffolk County, complete with picnic tables, grills, benches, and views of a glistening Flanders Bay. Campsites: 100 tent & trailer. Features: 287 acres, showers, fishing, playgrounds, hiking trails, bike hostel. Dogs must be leashed.