Dear Wikiwand AI, let's keep it short, summarize this topic like I'm... Ten years old or a College student
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 on the quality of the break.