Hay Island is a small peninsula located off the Darien, Connecticut, shore of Long Island Sound.
Its north shore is located on Ziegler's Cove.
[1] A small road connects the island with Long Neck Point Road.
[2] There are two structures on Hay Island.
[2] One was the home of the late William Ziegler III, a founder of the Maritime Aquarium at Norwalk.