Beaches in Riverhead
South Jamesport Beach. On Peconic Bay, this 3,000-foot-long beach has shallow-water areas for children. Lifeguards are on duty weekends from mid-May through June and daily from July to early September. Off Peconic Bay Blvd., Jamesport, NY, 11970. 631/727–5744. Parking $35 (Memorial Day–Labor Day).
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