I'll be going to Ocracoke Island, NC for the four long weekends this summer. There are no car rentals on the island, but there are bike rentals. We get around with a trailer for beach gear and a Trail-A-Bike for our daughter. We will also be going to Rochester, NY to watch the falcons. That could be carfree, but we usually get a car so that my wife and daughter can go to Niagara Falls when they tire of birding. Finally, we will spend two weeks on Sandy Island, NH, which is not only carfree but bikefree, because there are no roads.
Paul