St. Mary Parish, US
Southwest Reef Light is a historic lighthouse built in 1856 at the end of Southwest Reef in Atchafalaya Bay, Louisiana to replace lightships which had been stationed there for ten years. It served to guide vessels around the reef and into the main channel of the Atchafalaya River. It was discontinue
d in 1916 after a new, shorter and deeper, channel had been dredged across the reef, making it obsolete. Point Au Fer Reef Light took over its function.
Listen to the audio guide for Southwest Reef Light Free on WIP — starts by itself when you arrive, even with the screen off