The First Fleet were 11 British ships which transported a group of settlers to mainland Australia, marking the beginning of the European colonisation of Australia. It consisted of two Royal Navy vessels, three storeships and six convict transports under the command of Captain Arthur Phillip. On 13 May 1787, the ships, with over 1,400 convicts, marines, sailors, colonial officials and free settlers onboard, left Portsmouth and travelled over 24,000 kilometres (15,000 mi) and over 250 days before arriving in Botany Bay on 18 January 1788. Governor Arthur Phillip rejected Botany Bay choosing instead Port Jackson, to the north, as the site for the new colony; they arrived there on 26 January 1788, establishing the colony of New South Wales, as a penal colony which would become the first British settlement in Australia.