RAF Oban was a Royal Air Force flying boat base located in Ardantrive Bay at the northern end of the Isle of Kerrera, on the opposite side of Oban Bay from the town of Oban. RAF flying boats first used the Oban Bay area in 1928, and in August 1931 a Flight of Supermarine Southampton flying boats of No. 423 Squadron Royal Canadian Air Force was established at RAF Oban before the squadron relocated in November 1942 when they were replaced by No.