Karuah River, an open semi-mature tide dominated drowned valley estuary of the Mid-Coast Council system, is located in the Mid North Coast and Hunter regions of New South Wales, Australia.
The Cooks River, a semi-mature tide dominated drowned valley estuary, is a tributary of Botany Bay, located in south-eastern Sydney, New South Wales, Australia.
Middle Harbour Creek, a tributary of Middle Harbour, is a youthful tide dominated, drowned valley estuary northwest of Sydney Harbour, located in Sydney, New South Wales, Australia.
Broken Bay, a semi–mature tide-dominated drowned valley estuary, is a large inlet of the Tasman Sea located about 50 km north of Sydney central business district on the coast of New South Wales, Australia; being one of the bodies of water that separate greater Metropolitan Sydney from the Central Coast.
 Broken Bay is the first major bay north of Sydney Harbour.
The Georges River, formerly known as Tucoerah River, is an intermediate tide dominated drowned valley estuary, located to the south and west of Sydney, New South Wales, Australia.
The Clyde River (Aboriginal: "Bhundoo") is an open intermediate tide dominated drowned valley estuary; or perennial river that flows into the Tasman Sea, located in the South Coast region of New South Wales, Australia.
Port Hacking (Aboriginal Tharawal language: Deeban), an open youthful tide dominated, drowned valley estuary, is located in southern Sydney, New South Wales, Australia approximately 30 km south of Sydney central business district.
 Port Hacking has its source in the upper reaches of the Hacking River south of Helensburgh, and several smaller creeks, including South West Arm, Bundeena Creek and The Basin and flows generally to the east before reaching its mouth, the Tasman Sea, south of Cronulla and north–east of Bundeena.
 Its tidal effect is terminated at the weir at Audley, in the Royal National Park.
 The lower estuary features a substantial marine delta, which over time has prograded upstream.
 There is also a substaial fluvial (riverine delta) of the Hacking River at Grays Point.
 The two deltas are separated by a deep basin.
The Lane Cove River, a northern tributary of the Parramatta River, is a tide-dominated, drowned valley estuary west of Sydney Harbour, located in Sydney, New South Wales, Australia.
 The river is a tributary of the Parramatta River, winding through a bushland valley.
 It joins Parramatta River at Greenwich and Woolwich, where together they form an arm of Sydney Harbour.
Pittwater is a semi–mature tide dominated drowned valley estuary, located about 40 km north of the Sydney central business district, New South Wales, Australia; being one of the bodies of water that separate greater Metropolitan Sydney from the Central Coast.
Bungaree, or Boongaree, (1775 – 24 November 1830) was an Aboriginal Australian from the Broken Bay area, who was known as an explorer, entertainer, and Aboriginal community leader.

Question: What is the name of this semi-mature tide-dominated drowned valley estuary from where Bungaree, an Aboriginal Australian, originated?
Answer: Broken Bay