Sedd el Bahr (in modern Turkish, Seddülbahir, meaning "Key of the Sea") is a village at Cape Helles on the Gallipoli peninsula in Turkey. The village lies east of the cape, on the shore of the Dardanelles. It was the site of V Beach, the landing zone for two Irish battalions, including one from the SS River Clyde, on 25 April 1915 during the Battle of Gallipoli.