Trial Harbour is a small anchorage on the West Coast, Tasmania, located in the northern part of Ocean Beach, Tasmania. It was an exposed and particularly vulnerable anchorage which was susceptible to the prevailing local weather of the Roaring Forties, seventeen miles north of Macquarie Heads (the entrance to Macquarie Harbour). It was named after the cutter Trial which first anchored there in 1881, and it was established by four Baltic sailors, Gustav Weber, and the three Karlson brothers, Karl, Peter and Steve, otherwise known as the Russian Finns.