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A surf break (also break, shore break, or big wave break) is a permanent (or semi permanent) obstruction such as a coral reef, rock, shoal, or headland that causes a wave to break,〔 forming a barreling wave or other wave that can be surfed, before it eventually collapses. The topography of the seabed determines the shape of the wave and type of break. Since shoals can change size and location, affecting the break, it takes commitment and skill to find good breaks. Some surf breaks are quite dangerous, since the surfer can collide with a reef or rocks below the water. Surf breaks may be defended vehemently by surfers, as human activities and constructions can have unintended and unpredictable consequences which can be either positive, negative, or unknown. In 2008, surfers and environmentalists opposed a toll road project in Orange County, California that would have changed sediment patterns and affected the world-class ''Trestles'' surf break north of San Onofre State Beach which attracted 400,000 surfers in 2007. In 2007, the NSW Geographical Names Register began formally recognizing names of surf breaks in Australia, defining a surf break as a "permanent obstruction such as a reef, headland, bombora, rock or sandbar, which causes waves to break". One of the largest surf breaks in the world is the Jaws surf break in Maui, Hawaii, with waves that reach a maximum height of . ==Types of surf breaks== There are numerous types of surf breaks. These are defined as permanent or semi permanent obstructions that causes a wave to break, rather than by the nature of the wave itself (see under 'Types of surfable waves' below). Artificial wave pools are an example of technology changing what is considered a 'surf break' or 'surfable wave'. Some 'surf break' locations may be partly or wholly formed and influenced by human activities (see under 'Human influence on surf breaks' below). These effects are variable and may be either negative or positive with respect to the effect on local surf quality. 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「surf break」の詳細全文を読む スポンサード リンク
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