The "Royal Mail Ship Athens" was an iron steam screw barque of 739 tons, built in 1856 by Denny of Dumbarton and operated by the Union shipping company. It was wrecked between Mouille Point and Green Point on 17 May, 1865. This occurred at night, after the boiler fires were extinguished by heavy seas during a North-West gale while trying to steam out of Table Bay. The ship had been lying at anchor while preparing for a voyage to Mauritius. The site can be identified by the remains of the engine-block, which is visible above the water. This site is not in a Marine Protected Area.