Georges River in the context of "Submergent coastline"

Botany Bay (Dharawal: Kamay) 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.

The total catchment area of the bay is approximately 55 km (21 sq mi). Despite its relative shallowness, the bay now serves as greater metropolitan Sydney's main cargo seaport, located at Port Botany, with facilities managed by Sydney Ports Corporation. Two runways of Sydney Airport extend into the bay, as do some port facilities. Kamay Botany Bay National Park is located on the northern and southern headlands of the bay. The area surrounding the bay is generally managed by Transport for NSW.

Sutherland Shire is a local government area (LGA) in the southern region of Sydney, in the state of New South Wales, Australia. Sutherland Shire is located approximately 26 kilometres (16 mi) south-southwest of the Sydney CBD, and comprises an area of 370 square kilometres (140 sq mi). As at the 2021 census, Sutherland Shire has an estimated population of 230,211. The area is colloquially known as "The Shire", and has featured in several reality television series.

Geographically, it is the area directly to the south of Botany Bay and the Georges River. Sutherland Shire is 26 kilometres (16 mi) south-southwest of the Sydney CBD, and is bordered by the Bayside Council, City of Canterbury-Bankstown, Georges River Council and the City of Wollongong local government areas.

Taren Point is a small waterfront suburb, in southern Sydney, in the state of New South Wales, Australia 18 kilometres south of the Sydney central business district in the local government area of the Sutherland Shire.

Surrounded by the suburbs of Sylvania Waters and Caringbah, Taren Point is on the peninsula where the Captain Cook Bridge crosses north over the Georges River to Sans Souci, in the St George area.

Sans Souci (/sænz suːsiː/) is a Southern Sydney suburb in the state of New South Wales, Australia. Sans Souci is 17 kilometres south of the Sydney central business district and lies across the local government areas of the Bayside Council and the Georges River Council. It is part of the St George area.

Sans Souci sits on the western shore of Botany Bay. Lady Robinsons Beach and Cook Park run along the eastern border. Kogarah Bay runs along the western border. Sans Souci is connected to Taren Point, in the Sutherland Shire, to the south, by the Captain Cook Bridge over the Georges River.