Jean-François de Galaup, comte de Lapérouse
The expedition continued to Australia, arriving off Botany Bay on 24 January 1788. There Lapérouse encountered a British convoy (known later as the "First Fleet") led by Captain Arthur Phillip RN, who was to establish the penal colony of New South Wales. While it had been intended that the colony would be located at Botany Bay, Phillip had quickly decided that the site was unsuitable and the colony would instead be established at Sydney Cove in Port Jackson. High winds – which had hindered Lapérouse's ships in entering Botany Bay – delayed the relocation until 26 January (later commemorated as Australia Day).
Western Australia Day
HMS "Challenger", under Captain Charles Fremantle, anchored off Garden Island on 25 April 1829. Fremantle officially claimed the western part of Australia for Britain on 2 May. The merchant vessel "Parmelia" – with the new colony's administrator Lieutenant-Governor James Stirling, other officials, and civilian settlers on board – arrived on the night of 31 May and sighted the coast on 1 June. It finally anchored in Cockburn Sound on 6 June. The warship HMS "Sulphur" arrived on 8 June, carrying the British Army garrison. The Swan River Colony was officially proclaimed by Stirling on 11 June.