After landing some cargo for James Turner at Augusta the Thetis headed for Bunbury. Strong westerly winds prevented it from rounding Cape Leeuwin, so the schooner was turned to run eastwards and the crew sought shelter near Black Point. The swell produced by the gale threatened to overwhelm the Thetis, so the cables were slipped and the schooner was beached to prevent it from foundering. The master, Thomas Gilman, and the two crewmen walked back to Augusta. The schooner went to pieces on the rocks. The Turners went to the site of the wreck with their bullocks and horses to salvage what they could, but the Thetis had completely broken up. Some of the cargo was saved but all of it damaged to some degree.