Historically, Stewart’s Island has played many roles in Marion’s lore. It’s recognized as a site inhabited by native Sippicans. The island has served as part of Marion’s once prosperous salt works industry. In the late 1800s, it was the home of the Sippican Yacht Club, vestiges of which still stand on the town’s western shore just south of the inner harbor.

Visible to the southeast from Silvershell Beach. The 11 acres owned by the Sippican Lands Trust are on the southern side of the island.