Division of Warringah

The Balgowlah Boys Campus of Northern Beaches Secondary College is a government-funded single-sex comprehensive secondary day school for boys only, located in Balgowlah, a suburb on the Northern Beaches of Sydney, New South Wales, Australia. Established in 1954 as Balgowlah Boys High School, the campus enrolled approximately 900 students in 2018, from Year 7 to Year 12, of whom one percent identified as Indigenous Australians and 28 percent were from a language background other than English. The school is operated by the NSW Department of Education in accordance with a curriculum developed by the New South Wales Education Standards Authority; the principal is Paul Sheather.

Balgowlah is a suburb of northern Sydney, in the state of New South Wales, Australia. Balgowlah (or Bulgowlah) said to be an Aboriginal name for "North Harbour". The area now known as Balgowlah was known to the Aboriginals as Jilling. Balgowlah is located 12 kilometres north-east of the Sydney central business district in the local government area of Northern Beaches Council, in the Northern Beaches region. Balgowlah shares the postcode 2093 with the adjacent suburbs of Manly Vale, Balgowlah Heights and North Balgowlah.

Manly is an electoral district of the Legislative Assembly in the Australian state of New South Wales, and covers a large portion of the Northern Beaches Council local government area. Created in 1927, although it has historically tended to be a Liberal-leaning seat, Manly has had a history of independent local members. It is represented by James Griffin for the Liberal Party, and was previously represented by the former Premier of New South Wales, Mike Baird. On 23 January 2017, Baird resigned as Premier and member for Manly, triggering a by-election in the district which was held on 8 April and won by Liberal candidate James Griffin.

The Spit Bridge, a steel and concrete girder bridge with a bascule lift span across the Middle Harbour, is located 10 kilometres (6.2 mi) north-east of the central business district in Sydney, Australia. The bridge carries The Spit Road (A8) from a point called The Spit, and connects the suburbs of Mosman, on the south bank and Seaforth, on the north bank.

Middle Harbour (or Warrin ga), a semi–mature tide dominated drowned valley estuary, is the northern arm of Port Jackson, an inlet of the Tasman Sea located north of Sydney central business district on the coast of New South Wales, Australia. Middle Harbour has its source in the upper reaches of Garigal National Park where it forms Middle Harbour Creek and flows southeast to become Middle Harbour at Bungaroo and travels for approximately 10 kilometres (6.2 mi) before reaching its mouth at Port Jackson between Grotto Point near Clontarf and Middle Head. The catchment area of Middle Harbour is approximately 100 square kilometres (39 sq mi).

Manly Vale is a suburb of northern Sydney, in the state of New South Wales, Australia 17 kilometres north-east of the Sydney central business district in the local government area of Northern Beaches Council, in the Northern Beaches region. Manly Vale is predominantly a residential suburb with commercial land use on Condamine Street, containing small patches of light industrial. It also contains multiple Retirement Villages and Aged Care facilities.

The Balgowlah Substation is a heritage-listed former electrical substation and now child care centre located at 83 Griffiths Street, Balgowlah, Northern Beaches Council, New South Wales, Australia. It was built in 1928. It is also known as #15003 Balgowlah 33KV Zone Substation. The property is owned by Ausgrid, a privately owned energy utility company. The property was added to the New South Wales State Heritage Register on 2 April 1999.

Balgowlah Heights is a suburb of northern Sydney, in the state of New South Wales, Australia 11 kilometres north-east of the Sydney central business district in the local government area of Northern Beaches Council, in the Northern Beaches region. Balgowlah Heights shares the postcode 2093 with the adjacent Balgowlah and North Balgowlah. Situated on a ridge up to 80 metres above North Harbour and Middle Harbour, some houses have panoramic views of the harbour, Eastern Suburbs and Spit Bridge. The suburb features remnant Sydney Harbour bushland, contained in the National Park around Dobroyd Head and Grotto Point. Tania Park at the eastern fringe offers relaxed recreation and one can watch the Manly ferry cut its way to Circular Quay.

The Middle Harbour Syphon is a heritage-listed sewerage syphon located at Monash Crescent (East Side), Clontarf, Northern Beaches Council, New South Wales, Australia. It was designed by E. M. de Burgh, an engineer in the NSW Public Works Department and was built from 1922 to 1925 by the Department. The sewerage syphon is also known as the Middle Harbour Syphon NSOOS and The Spit Syphon. The property is owned by Sydney Water, an agency of the Government of New South Wales. The property was added to the New South Wales State Heritage Register on 15 November 2002.

Clontarf (Irish: Cluain Tarbh, meaning "meadow of the bull") is a suburb of northern Sydney, in the state of New South Wales, Australia. Clontarf is located 13 kilometres north-east of the Sydney central business district in the local government area of Northern Beaches Council, in the Northern Beaches region.

The Parish of Manly Cove is a civil parish of the County of Cumberland on the northern beaches of Sydney and covers numerous suburbs including Fairlight, Frenchs Forrest, Forestville, Kilarney Heights, Dee why, Davidson, Manly and Bookvale. The boundaries of the parish are the Pacific Ocean to the east, Middle Harbour Creek to the west, Sydney Harbour to the south and Narrabeen Lagoon on the north. Much of the parish is residential in a nature with large tracts of National Park.

The Manly Dam Reserve, also known as the Manly Warringah War Memorial Park, is an urban bushland reserve located in the Northern Beaches region of Sydney, Australia. The reserve adjoins the south-eastern edge of Garigal National Park. Located within the 376 hectares (930 acres) reserve is the 30-hectare (74-acre) dam reservoir.The heritage listed dam wall was designed and built in 1892 by the NSW Department of Public Works. The dam wall is located just outside the boundary of the reserve and is owned by Sydney Water. There are a number of Aboriginal heritage sites in the reserve.