East of Riverhead in Suffolk County, Long Island splits into two peninsulas (colloquially referred to as "Forks"), which are separated by the Peconic Bay. The easternmost point of the North Fork is Orient Point, and the easternmost point of the South Fork (and all of Long Island) is Montauk Point. Long Island's East End remains semi-rural, as in Greenport on the North Fork and some of the periphery of the area prominently known as The Hamptons, although summer tourism swells the population in those areas. The North Fork has developed a burgeoning wine region. In addition, the South Fork is known for beach communities, including the Hamptons, and for the Montauk Point Lighthouse at the eastern tip of the island. The Pine Barrens is a preserved pine forest encompassing much of eastern Suffolk County.