Question: In which suburb of Melbourne, Australia did Harold Edward Holt go missing?

Context:
Megan Is Missing
Megan Is Missing is a 2011 American drama horror film written and directed by Michael Goi.
 The film is presented by way of "found footage" and follows two early-teen girls that go online to find friends but instead go missing.
 It was released on DVD in May 2011.
Portsea, Victoria
Portsea is a resort town suburb of Melbourne, Australia, located across Port Phillip from the Melbourne CBD.
 Its local government area is the Shire of Mornington Peninsula.
116 000
116 000 is the European missing children hotline number.
 It was the first harmonised service of social value to be adopted by the European Union.
 The 116 000 hotline provides free, immediate life saving support when children go missing.
 It is active in 29 countries in Europe: Albania, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden and the United Kingdom.
 Finland is the only country in the European Union that hasn't doesn't have an operational 116 000 hotline.
Blackwell (historic house)
Blackwell is a large house in the English Lake District, designed in the Arts and Crafts style by Baillie Scott.
 It was built 1898–1900, as a holiday home for Sir Edward Holt, a wealthy Manchester brewer.
 It is situated near the town of Bowness-on-Windermere with views looking over Lake Windermere and across to the Coniston Fells.
Samuel Holt
Samuel Edward Holt (3 September 1880 – 18 April 1929) was an Irish politician.
Edward Holt
Edward Holt (born 1879) was an English footballer.
 His regular position was as a forward.
 He was born in Withington, Manchester, Lancashire.
 He played for Manchester United and Newton Heath Athletic.
Harold Holt
Harold Edward Holt, {'1': ", '2': ", '3': ", '4': "} ( ; 5 August 190817 December 1967), was an Australian politician and the 17th Prime Minister of Australia from 1966 to 1967.
 He was born in Stanmore, New South Wales and won a scholarship to study law at the University of Melbourne.
 Holt went into business as a solicitor, during which time he joined the United Australia Party (UAP).
 In 1935, aged just 27, he was elected to parliament for Fawkner.
 He held this seat until 1949, when he transferred to Higgins.
 Holt spent 32 years in Parliament, including many years as a senior Cabinet Minister, but was Prime Minister for only 22 months before he disappeared in December 1967 while swimming at Cheviot Beach near Portsea, Victoria and was presumed drowned.
Zara Bate
Dame Zara Kate Bate {'1': ", '2': ", '3': ", '4': "} (née Dickins , previously Fell and Holt; 10 March 190914 June 1989) was an Australian fashion designer and socialite who was best known as the wife of Harold Holt, the 17th Prime Minister of Australia.
 She grew up in Melbourne, attending Ruyton Girls' School and Toorak College.
 Going into the dressmaking business, she opened a shop in 1930 and eventually expanded into a chain of boutiques.
 Zara's first marriage to James Fell was short-lived, although they had three children together.
 She remarried to Harold Holt – a Liberal Party politician – in 1946, although they had known each other for many years previously.
 She became the prime minister's wife in 1966, and was known for her energy and flamboyance.
 She was widowed in December 1967, when her husband disappeared while swimming at Cheviot Beach, Victoria.
 Zara published her autobiography in 1968, and the following year remarried to Jeff Bate, another politician.
 She was widowed for a second time in 1984, and subsequently retired to the Gold Coast.
Missing People
Missing People (previously known as National Missing Persons Helpline) is a national organisation in the United Kingdom that offers assistance to people who run away and/or go missing and their families.
 It is a registered charity under English law.
Harold Daly
Harold Edward Daly (8 October 1915 – 27 April 1995) was an Australian rules footballer who played with Hawthorn, North Melbourne and St Kilda in the Victorian Football League (VFL).
 In a brief league career, which saw him play for three clubs, Daly never once played in a winning team.
 He originally arrived at Hawthorn from Eaglehawk.
 A brother, Alan Daly, later played with Melbourne.

Answer: Portsea, Victoria