When Portland, Victoria was established as a whaling station in 1829, there was tension between the local Gunditjmara people Kilcarer gundidj clan and the whalers. In 1833 or 1834 this tension turned into a full-fledged massacre in a dispute over a beached whale. The Convincing Ground is located in Portland Bay southwest of Melbourne, near the coastal town of Portland in the Shire of Glenelg and is listed on the Victorian Heritage Register.