Beacon Towers was a Gilded Age mansion on Sands Point in the village of Sands Point on the North Shore of Long Island, New York. It was built from 1917 to 1918 for Alva Belmont, the ex-wife of William Kissam Vanderbilt and the widow, since 1908, of Oliver Belmont.

Sands Point is a village located at the tip of the Cow Neck Peninsula in the Town of North Hempstead, in Nassau County, on the North Shore of Long Island, in New York, United States. It is considered part of the Greater Port Washington area, which is anchored by Port Washington. The population was 2,675 at the 2010 census.