Question: Marino is a suburb in the south of Adelaide, it neighbours Seacliff, Kingston Park, and which coastal suburb in the south of Adelaide, South Australia, with a population of more than 12,000 people?

Context paragraphs:
Kingston House, Kingston Park: Kingston Historical House is a pioneer house found in Kingston Park, South Australia, a suburb of Adelaide, South Australia.

Moana, South Australia: Moana is an outer coastal suburb in the south of Adelaide, South Australia.  The suburb is approximately 36.4 km from the Adelaide city centre.  It lies within the City of Onkaparinga local government area, and neighbours the suburbs Seaford, Maslin Beach, Seaford Rise and Port Noarlunga

Kingston Park, South Australia: Kingston Park is a small beachside suburb, 17 km south of Adelaide.  Kingston Park is within the City of Holdfast Bay and neighbouring suburbs are Marino, Seacliff and Brighton.

Marino, South Australia: Marino is a suburb in the south of Adelaide, South Australia.  It sits on coastal hills overlooking Gulf St Vincent, within the City of Marion local government area.  It neighbours Seacliff, Hallett Cove and Kingston Park.

Seacliff, South Australia: Seacliff is a suburb of Adelaide in the City of Holdfast Bay.  The suburb is adjacent to Brighton, Seacliff Park, Marino and Kingston Park.

Brighton, South Australia: Brighton is a coastal suburb of Adelaide, South Australia, situated between Seacliff and Glenelg and aside Holdfast Bay.  Some notable features of the area are the Brighton-Seacliff Yacht Club, the Brighton Surf Lifesaving Club, the Brighton Jetty, and its excellent beach.  The Windsor Theatre constructed in 1925 is a long-standing institution, showing cinema to the locals usually two films per night.

Hallett Cove, South Australia: Hallett Cove is a coastal suburb in the south of Adelaide, South Australia, with a population of more than 12,000 people.  Adjoining suburbs are Marino to the north, Trott Park and Sheidow Park to the east and Lonsdale to the south.  It is within the City of Marion local government area.  The Hallett Cove Shopping Centre is the suburb's largest shopping centre, and has recently undergone a major redevelopment.  New features include underground parking, a food court, a Big W department store and a Woolworths supermarket in addition to the Drake Foodmarkets owned Foodland already in place.

Hove, South Australia: Hove is a coastal suburb of Adelaide, South Australia.  It is situated north of Brighton, west of Warradale, and south of North Brighton.  Running along the west of the suburb is the Esplanade, a street with numerous townhouses with views of the Gulf St Vincent.  The suburb is bisected by its major thoroughfare, Brighton Road.  Property prices are generally higher on the coastal side of Brighton Road.

Electoral district of Bright: Bright is an electorate for the South Australian House of Assembly.  It is named after Charles Bright, at various times South Australian Supreme Court Judge, Flinders University Chancellor, Health Commission Chairman, and Electoral Boundaries Commission Chairman.  The seat covers southern coastal suburbs of Adelaide including Brighton, North Brighton, South Brighton, Hallett Cove, Hove, Kingston Park, Marino, Seacliff, Seacliff Park, and part of Somerton Park.

Kingston Park Metro station: Kingston Park Metro station serves the Kingston Park suburb of Newcastle upon Tyne, England and a retail park some 6 km north of the city centre.

Supporting paragraphs: Marino, South Australia Hallett Cove, South Australia
Answer: Hallett Cove