Question: The Onkaparinga River National Park in Onkaparinga Hills, South Australia is in which southern suburb?

full_context: Document 1: Botanic Park, Adelaide: Botanic Park, which is a part of Park 11 and also known by its Kaurna name Tainmundilla, is a 34 hectare (84 acre) park in the Northeast Parklands of the South Australian capital of Adelaide. It is bordered by Hackney and Frome Roads. The park abuts the Adelaide Zoo and River Torrens on its northern side and an avenue of Plane Trees planted in 1874 to its southern side. It is dotted with exotic species such as century-old Moreton Bay Figs from Queensland.
Document 2: Onkaparinga River National Park: Onkaparinga River National Park is a protected area in the Australian state of South Australia located about 32 km south of Adelaide city centre. It extends over the floodplain of the Onkaparinga River east of Main South Road.
Document 3: City of Onkaparinga: The City of Onkaparinga is a local government area (LGA) located on the southern fringe of Adelaide, South Australia. It is named after the Onkaparinga River, whose name comes from "Ngangkiparinga", a Kaurna word meaning women's river. It is the largest LGA in South Australia, with an estimated population of 164,800 people in both urban and rural communities and is also geographically expansive, encompassing an area of 518.3 km². The council is headquartered in the Noarlunga Centre with area offices situated in Aberfoyle Park, Woodcroft and Willunga.
Document 4: Port River: The Port River (officially known as the Port Adelaide River) is a river located north of the Adelaide central business district in the Australian state of South Australia.
Document 5: Onkaparinga Hills, South Australia: Onkaparinga Hills is a southern suburb of Adelaide, in the City of Onkaparinga. It covers an area of approximately 22 km2 . It has a population of 2534 people (2011 Census). It is a leafy suburb that includes parts of the Onkaparinga River National Park.
Document 6: Port Noarlunga Reef Aquatic Reserve: Port Noarlunga Reef Aquatic Reserve is a marine protected area in the Australian state of South Australia located in waters in Gulf St Vincent adjoining the Adelaide metropolitan area and including part of the Onkaparinga River about 28 km south-west of the state capital of Adelaide.
Document 7: Cleland Conservation Park: Cleland Conservation Park is a protected area located in the Adelaide Hills, South Australia about 22 km south-east of the Adelaide city centre. Cleland Conservation Park conserves a significant area of natural bushland on the Adelaide Hills face and includes the internationally popular "Cleland Wildlife Park" and the popular tourist destinations of Mount Lofty summit and Waterfall Gully. It is maintained by the South Australian Department of Environment, Water and Natural Resources (DEWNR).
Document 8: Geology of South Australia: South Australia is an Australian state, situated in the southern central part of the country, and featuring some low-lying mountain ranges, the most significant being the Mount Lofty Ranges, which extend into the state's capital city, Adelaide, which comprises most of the state's population. Adelaide is situated on the eastern shores of Gulf St Vincent, on the Adelaide Plains, north of the Fleurieu Peninsula, between Gulf St Vincent and the low-lying Mount Lofty Ranges. The state of South Australia, which stretches along the coast of the continent and has boundaries with every other state in Australia, with the exception of the Australian Capital Territory and Tasmania. The Western Australia border has a history with South Australia, involving the South Australian Government Astronomer, Dodwell and the Western Australian Government Astronomer, Curlewis in the 1920s to mark the border on the ground.
Document 9: Mount Osmond, South Australia: Mount Osmond is a small suburb of 2,497 people in the South Australian capital city of Adelaide. It is part of the City of Burnside local government area and located in the foothills of the Adelaide Hills, five kilometres south east of the city centre. The suburb is high on the hill of the same name, which is the last hill on the right when approaching Adelaide down the South Eastern Freeway before the road levels out onto the Adelaide Plains. It is bounded to the north by the suburb of Beaumont, to the north-east by Burnside, to the east by Waterfall Gully, to the south by Leawood Gardens/Eagle On The Hill, to the south-west by Urrbrae, to the west by Glen Osmond and to the north-west by St Georges.
Document 10: Murray River National Park: Murray River National Park is a protected area in South Australia located between 180 km and 240 km north east of the Adelaide city centre. The national park was proclaimed in 1972 "to conserve a significant proportion of South Australia’s floodplain environments which are not represented widely in other reserve systems." The national park consists of three sections adjoining the Murray River and extending from near Loxton in the south west to near Renmark in the north-east. The first which is known as the ‘Katarapko’ section is located on the north side of the river between Loxton in the south and Berri in the north. The second section which is known as the ‘Lyrup Flats’ section is located on the north side of the river midway between Berri and Loxton. The third section is known as the ‘Bulyong’ section is located on the west side of the river upstream from Renmark. The national park is classified as an IUCN Category VI protected area.
Document 11: Onkaparinga River: The Onkaparinga River, known as Ngangkiparri in the Kaurna language, is a river located in the Southern Adelaide region in the Australian state of South Australia.
Document 12: Onkaparinga River Recreation Park: Onkaparinga River Recreation Park is a protected area occupying land in the estuary of the Onkaparinga River in South Australia. The recreation park which was established in 1985 is approximately 32 km from Adelaide city centre. It is the venue for recreational activities such as walking, canoeing, kayaking, recreational fishing and picnics.
Document 13: Adelaide Hills: The Adelaide Hills are part of the Mount Lofty Ranges, east of the city of Adelaide in the state of South Australia. It is unofficially centred on the largest town in the area, Mount Barker, which has a population of around 29,000 and is also one of Australia's fastest growing towns.
Document 14: Brownhill Creek Recreation Park: Brownhill Creek Recreation Park is a protected area located about 8 km south of the Adelaide city centre in City of Mitcham along part of the course of the Brown Hill Creek. The recreation park was proclaimed under the "National Parks and Wildlife Act 1972" in 1972 to "provide recreation opportunities for the Adelaide and eastern metropolitan region and to conserve remnant aged river red gums and the riparian zone habitat". The land previously subject to protected area status as a "National Pleasure Resort" since 1915. The recreation park is classified as an IUCN Category III protected area.
Document 15: City of Onkaparinga: The City of Onkaparinga is a local government area (LGA) located on the southern fringe of Adelaide, South Australia. It is named after the Onkaparinga River, whose name comes from "Ngangkiparinga", a Kaurna word meaning women's river. It is the largest LGA in South Australia, with an estimated population of 164,800 people in both urban and rural communities and is also geographically expansive, encompassing an area of 518.3 km². The council is headquartered in the Noarlunga Centre with area offices situated in Aberfoyle Park, Woodcroft and Willunga.
ground_truth: Adelaide