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

full_context: Document 1: Port Jackson: Port Jackson, consisting of the waters of Sydney Harbour, Middle Harbour, North Harbour and the Lane Cove and Parramatta Rivers, is the ria or natural harbour of Sydney, New South Wales, Australia. The harbour is an inlet of the Tasman Sea (part of the South Pacific Ocean). It is the location of the Sydney Opera House and Sydney Harbour Bridge. The location of the first European settlement in Australia, Port Jackson has continued to play a key role in the history and development of Sydney.
Document 2: Bungaroo: Bungaroo is a locality near St. Ives, Sydney, Australia. The location is thought to be the site where Governor Arthur Phillip and party camped on the night of 16 April 1788 on the first of many expeditions intended to find arable land that could supply the Colony with agricultural products. The colony at Sydney Cove was dependent on supplies from England, but the soils around the harbour were too poor to support crops and sustain the Colony. This trip is very historic for the Ku-ring-gai Shire, being when Europeans first entered there. It is very historic for the entire Colony or State, being when the Blue Mountains were first sighted. It is believed from later statements made by Governor Phillip that he realized on seeing such large mountains that they must have a large river with rich alluvial soils. Thus the day after camping at Bungaroo the Colony's ultimate survival was realized, and it would be very soon indeed that the Governor would direct endeavour westwards with major consequences. As all that unfolded, unto this day, some consider that Bungaroo is the sole place recognizable in the colonists' writings of 1788 which now remains unchanged from as it was then.
Document 3: Georges River: 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.
Document 4: Butmaroo: Butmaroo is a locality near Bungendore, New South Wales. Butmaroo Homestead was occupied by the early settlers in the region and the name may have originated in the small endangered macropod Butmaroo which used to be common in the area.
Document 5: Brisbane Water: Brisbane Water is a wave-dominated barrier estuary located in the Central Coast region, to the north of Sydney, New South Wales, Australia. Brisbane Water has its origin at the confluence of the Narara and Coorumbine Creeks, to the south–east of Gosford and travels for approximately 18 km in a southerly direction to its mouth at Broken Bay, about 7 km from the Tasman Sea, at Barrenjoey Head. A number of towns surround the shores of Brisbane Water, including Booker Bay, Davistown, Ettalong Beach, Gosford, Green Point, Kincumber, Phegans Bay, Saratoga, Wagstaffe, and Woy Woy. Contained within Brisbane Water is St Huberts Island, Rileys Island, and Pelican Island; and adjoining the estuary is Brisbane Water National Park to the west and Bouddi National Park to the east.
Document 6: Gumbaynggirr: Gumbaynggir (also 'Kumbainggar') are an Australian Aboriginal group who traditionally lived in the area contiguous with Coffs Harbour, New South Wales.
Document 7: Pittwater: 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.
Document 8: Broken Bay: 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.
Document 9: Bungaree: 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.
Document 10: Cooks River: 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.
Document 11: Moreton Bay (song): Moreton Bay is an Australian folk ballad which tells of the hardship a convict experienced at penal settlements around Australia, in particular, the penal colony at Moreton Bay, Queensland which was established to house convicts who had reoffended in settlements in New South Wales. The song references exceptionally brutal treatment of convicts while the colony was under the command of the infamous Patrick Logan. It also describes Logan's death at the hands of local Aborigines and the joy felt by the convicts upon hearing the news. The song may have been composed at the time of Logan's death on or soon after 18 October 1830. A version entitled "The Convict's Arrival" or "The Convict's Lament on the Death of Captain Logan" has been attributed to Francis MacNamara who was transported to Australia in 1832 and was never held at Moreton Bay. It is customarily sung to the tune of "The dark eyed youth" (also known as "Eochaill"), which was used later for the song "Boolavogue", the lyrics of which were written in 1897 for the centenary of the Irish Rebellion of 1798.
Document 12: Balls Head Reserve: Balls Head Reserve is a forested headland situated on Port Jackson, 1.5 kilometres (one mile) west of the Sydney Harbour Bridge. It is named after Lieutenant Henry Lidgbird Ball, a Royal Naval officer who commanded the Supply on the First Fleet. The original inhabitants were the Cammeraygal people. Evidence of their occupation includes art sites, middens and a spectacular petroglyph of a marine creature. An Aboriginal burial site within a rock shelter was documented by Sandra Bowdler, an archaeologist from the Australian Museum in 1964.
Document 13: Bingara, New South Wales: Bingara (Aboriginal for 'creek') is a small town on the Gwydir River in Murchison County in the New England region of New South Wales, Australia. In 2011, Bingara had a population of 1,093 people. and is currently the administrative centre for the Gwydir Shire that was created in 2003. It has a culturally homogeneous population as residents are mostly of Anglo-Celtic background. Only 9.4% of the population is born overseas and 3.3% is of Aboriginal or Torres Strait Islander background. It is a popular site for retirement and hence has an old population, with 53.8% aged 55 years and over, compared to the national average of 26.4%. Bingara's socioeconomic status is comparatively lower than that of Australia. Bingara is one of the few places in Australia where diamonds have been found. The Gwydir River being a main highlight of the town is a main catchment of the Murray-Darling System.
Document 14: William Buckley (convict): William Buckley (178030 January 1856) was an English convict who was transported to Australia, escaped, was given up for dead, and lived in an Aboriginal community for many years.
Document 15: Port Hacking: 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.
ground_truth: Broken Bay