Геллес
was part of the Allied fleet in the naval operations in the Dardanelles Campaign, supporting the landing at Cape Helles on 25 April 1915. On the night of 12–13 May 1915 "Goliath" was stationed, along with and screened by five destroyers, in Morto Bay off Cape Helles, in an effort to relieve the pressure on the French flank of the landing.