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The Serpentine (also known as the Serpentine River) is a recreational lake in Hyde Park, London, England, created in 1730 at the behest of Queen Caroline. Although it is common to refer to the entire body of water as the Serpentine, strictly the name refers only to the eastern half of the lake. Serpentine Bridge, which marks the boundary between Hyde Park and Kensington Gardens, also marks the Serpentine's western boundary; the long and narrow western half of the lake is known as the Long Water. The Serpentine takes its name from its snakelike, curving shape, although it only has one bend. Originally fed by the River Westbourne and Tyburn Brook in the 1730s, the lake's water was then pumped from the Thames in the 1830s. The water is now pumped from three boreholes within Hyde Park, the most recent being installed in May 2012 as part of the 2011–2012 restoration of the Lake. The Serpentine provided a focal point for The Great Exhibition of 1851, and more recently was a venue for the men's and women's triathlon and marathon swimming events in the London 2012 Olympics. Since 1864 the Serpentine Swimming Club has organised a 100-yard race every Christmas morning for the Peter Pan Cup, inaugurated by J. M. Barrie, the creator of the fictional character Peter Pan. There are many recreational facilities around the Serpentine, as well as boating on the lake itself. In 1860 the Serpentine was to be modified into a skating pond with formal edges. This scheme was not implemented. Among the landmarks near the lake is the Diana, Princess of Wales Memorial Fountain. == Geography of the lake == Originally the lake was fed by the River Westbourne entering at the Italian Garden at the north-western end of the Long Water. The Westbourne ceased to provide the water for the Serpentine in 1834, as the river had become polluted,〔 (【引用サイトリンク】url=http://www.pureandconstant.talktalk.net/page-s00.html )〕 and so water was then pumped from the Thames. The water is now supplied by three boreholes drilled into the Upper Chalk. The first borehole is located at the Italian Gardens, the second at the Diana Memorial and the third, drilled in 2012 to a depth of 132m, is within 50m of the Diana Memorial. The Long Water runs south-east from this point to Serpentine Bridge, where the lake curves to the east, following the natural contours of the land. At the eastern end, water flows out of the lake via a sluice in the dam, forming a small ornamental waterfall at the Dell. The outflow has not historically maintained the waterfall, and re-circulation pumps were installed in the Dell, below the dam, to sustain this feature. The restoration work in 2012 restored the flows into the Serpentine and this waterfall is now restored as originally designed. Historically the river flowed due south from this point, marking the boundary between Westminster and Kensington, but since 1850 it has been diverted into a culvert, running underground to reach the Thames near Chelsea Bridge. The lake has a maximum depth of 17 feet (5.3 m). The lake is often reported to be deeper, but bathymetric surveys by the Royal Park in 2010 revealed the design of the lake. There are two lakeside restaurants〔(【引用サイトリンク】url=http://www.royalparks.org.uk/home/park-cuisine )〕 and various recreational facilities on the lake shore. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「The Serpentine」の詳細全文を読む スポンサード リンク
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