Gardiners Island lighthouse

Gardiner's Island lighthouse was a navigational aid built off the tip of Long Island, NY, in the mid-19th century.

It was built on a long sandbar that extended from the northern tip of Gardiner's Island in 1855. Later in the century a large storm washed away part of the sandbar, turning its northern tip into an island, Gardiner's Point Island.

Erosion washed away at the foundations of the lighthouse, making it unsafe, and it was abandoned. By the turn of the 19th century the lighthouse itself had been washed away.