Synchronized Swimmers, Laguna Hills, California

Photograph by Karen Kasmauski

Submerged ballerinas rehearse for their annual show at Leisure World in Laguna Hills, California. Activities like line dancing, lawn bowling, and computer classes make retirement communities increasingly popular among people with decades of free time to fill.

(Photo shot on assignment for, but not published in, "Aging—New Answers to Old Questions," November 1997, National Geographic magazine)