The First Fleet were eleven British ships which transported a group of settlers to mainland Australia, marking the beginning of the British 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 and over 250 days before arriving in Botany Bay, New South Wales, on 18 January 1788. Governor Arthur Phillip rejected Botany Bay, choosing instead Port Jackson to the north as the site for the new colony; the Fleet arrived there on 26 January 1788. The Fleet established the Colony of New South Wales as a penal colony; the first British settlement in Australia.