This notorious but pristine barrier island stretches for 30 miles (?km) with one access point, at the eastern end. 4WD is a must to explore the endless breaks that can get hollow and powerful. NW is offshore and it will break on all tides, but low incoming is best. Optimum swell direction depends on which part of the island you're at, but it generally breaks on all swells.
Rarely crowded due to the large scope of choice. Lots of rips and currents. Annual 4WD vehicle passes are about $150. Renting a 4WD is much cheaper outside the NY metropolitan area.