Campgrounds and RV parks near Shelter Island, NY

Roughly one-third of the island is protected as Mashomack Preserve, a Nature Conservancy property with miles of walking trails through oak woodlands, tidal creeks, and shoreline. Families typically split days between preserve hikes, quiet bay beaches, and the ferry ride itself, which kids tend to treat as part of the trip. Off-island, the North Fork offers wineries, farm stands, and Greenport's waterfront village. A short ferry hop to the North Fork opens up Long Island vineyards and small-town dining. The South Fork side leads toward Sag Harbor and Montauk, and Hither Hills State Park adds ocean surf, a 40-acre freshwater lake, and a two-mile sandy beach. In Connecticut, Rocky Neck and Hammonasset provide swimming, birdwatching in salt marshes, and paved multi-use paths that work well for kids on bikes.

The camping window in this region is tight. Eastern Long Island Kampground typically operates from May through October, and the surrounding state parks follow a similar shoulder-to-shoulder pattern. Hither Hills State Park runs from mid-spring into late fall, with peak season from mid-June through mid-September carrying a 7-night reservation minimum. Hammonasset Beach State Park's camping season runs from late May through mid-October, and Rocky Neck's begins in May and ends in early September. July and August are hot, humid, and heavily booked. Ferry lines can back up on summer weekends, so travelers with a rig usually stage off-island and cross as foot passengers during peak hours. June and September tend to be the sweet spots for weather, with warm water, thinner crowds, and easier reservation availability. Late fall brings crisp days, migrating shorebirds through the marshes, and closed swimming beaches. Winter is not a practical camping season here: nearly all shoreline campgrounds are shuttered, and coastal winds off the sound are cutting.

Plan around the ferry. Shelter Island is only accessible by ferry, and both operators charge by vehicle size. Large motorhomes and long trailers are best left at a mainland campground while renters cross on foot, by bike, or with a tow vehicle. Expect close-set sites at the popular state parks. Hither Hills stretches along a two-mile sandy beach with direct ocean access from a 189-site campground. All sites are back-in style with equipment length limits of roughly 20 to 30 feet depending on the site, and there are no electric or water hookups. Pets are not permitted at Hither Hills, Hammonasset, or Rocky Neck campgrounds during the main season. Bring sunscreen for exposed beach sites and bug spray for evenings near the salt marshes. Cell service is generally reliable across the region, but grocery runs on Shelter Island itself are limited to a few small markets.