This well-organized, family-friendly place on the Shining Sea Bikeway has 100 wooded campsites and 11 cabins, plus fun tipis for hire ($75). The cabins range from one to three rooms and can hold up to seven people; they're usually rented by the week. Perks include a free daily shuttle to the beach and to the Vineyard ferry.
Sippewissett Campground & Cabins
Cape Cod