How many acres is the body of water that is also the name of a neighborhood where the main subjects lived in Grey Gardens?
Grey Gardens: Grey Gardens is a 1975 American documentary film by Albert and David Maysles. Grey Gardens:  The film depicts the everyday lives of two reclusive, formerly upper class women, a mother and daughter both named Edith Beale, who lived in poverty at Grey Gardens, a derelict mansion at 3 West End Road in the wealthy Georgica Pond neighborhood of East Hampton, New York. Georgica Pond: Georgica Pond is a 290 acre coastal lagoon on the west border of East Hampton Village and Wainscott, and was the site of a Summer White House of Bill Clinton in 1998 and 1999.
290