modern centre with a more conservative design which still incorporates the historic carousel; it opened in mid-2006. Since its opening, The Beachouse has been a widely popular attraction of the Glenelg area, appealing to both adults and children. A 25-metre single-arm Ferris wheel was a prominent feature of the area until its closure. Wastewater treatment plant South Australia's second largest wastewater treatment plants is located in Glenelg. It was first established in 1933, and was upgraded in 1945, 1962, 1973 and most recently in 2002. A pipeline pumps 2.8 gigalitres of treated wastewater to Adelaide where it is used to irrigate green spaces, such as parks and ovals. The facility also conducts tours for school groups and visitors to learn about water supply and treatment. The plant also returns treated wastewater to the ocean. The most significant pollutants discharged to the sea (by mass) in 2018/19 were: nitrogen (180 tonnes), phosphorus (78 tonnes), chlorine (32 tonnes), ammonia (14 tonnes), fluoride (14 tonnes) and zinc (1 tonne). High-rise development Atlantic Tower was built in the late 1970s and was Adelaide's tallest residential building at the time. The fourteen-story tower featured a revolving restaurant on its top floor, and was part of a larger development plan that never eventuated. Many other high-rise buildings exist in Glenelg, including the fifteen-story Stamford Grand hotel on Moseley Square, built in 1990, and the twelve-story Liberty Towers, built in 2004. The Holdfast Shores development, starting in the late 1990s, included the construction of the Marina Pier apartment building with its own private marina in Glenelg North, and the Pier Hotel, founded 2001, and unrelated to the historic Pier Hotel on Moseley Square. The development was met with strong opposition, from both local residents and the City of Holdfast Bay, fearing overdevelopment would ruin the area. Parts of the plan were scaled back, with the Platinum Apartment building scaled down from fifteen stories to nine, and the cinema complex cancelled. Demographics The 2016 Census by the Australian Bureau of Statistics counted 3,349 persons in Glenelg on the night of the census. The majority of residents are of Northern European descent, and almost two-thirds of residents are at least second generation Australian. Glenelg is a predominantly Christian community, with common affiliations, in descending order, Catholic, Anglican, no religion and Uniting. The age distribution of Glenelg residents is skewed upwards more so than that of the Australian population. 26.4%