The armed tender HMS Supply, the first ship of the First Fleet, arrived at Botany Bay, Australia.

A ship's tender, usually referred to as a tender, is a boat or ship used to service or support other boats or ships. This is generally done by transporting people or supplies to and from shore or another ship.

HMAT Supply was an 8-gun armed tender of the Royal Navy launched in 1759. She played an important part in the foundation of the colony of New South Wales. The Navy sold her in 1792. She then served commercially until about 1806.

The First Fleet were eleven 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.

Botany Bay is an open oceanic embayment, located in Sydney, New South Wales, Australia, 13 km (8 mi) south of the Sydney central business district. Its source is the confluence of the Georges River at Taren Point and Sans Souci as well as the Cooks River at Kyeemagh, which flows 10 km (6 mi) to the east before meeting its mouth at the Tasman Sea, midpoint between the suburbs of La Perouse and Kurnell. The northern headland of the entrance to the bay from the Tasman Sea is Cape Banks, and, on the southern side, the outer headland is Cape Solander, and the inner headland is Sutherland Point.