answers: 10
context: is in a separate building, the building may be called a natatorium. The building may sometimes also have facilities for related activities, such as a diving tank. Larger pools sometimes have a diving board affixed at one edge above the water. Many public swimming pools are rectangles 25 m or 50 m long, but they can be any size and shape. There are also elaborate pools with artificial waterfalls, fountains, splash pads, wave machines, varying depths of water, bridges, and island bars. Some swimming facilities have lockers for clothing and other belongings. The lockers can require a coin to be </s> female athletes compete in 16 of the recognized events each. Olympic events are held in a 50-meter pool, called a long course pool. There are forty officially recognized individual swimming events in the pool; however the International Olympic Committee only recognizes 32 of them. The international governing body for competitive swimming is the "Fédération Internationale de Natation" ("International Swimming Federation"), better known as FINA. In open water swimming, where the events are swum in a body of open water (lake or sea), there are also 5 km, 10 km and 25 km events for men and women. However, only the </s> long and at least deep. Competition pools are generally indoors and heated to enable their use all year round, and to more easily comply with the regulations regarding temperature, lighting, and automatic officiating equipment. An Olympic-size swimming pool (first used at the 1924 Olympics) is a pool that meets FINA's additional standards for the Olympic Games and for world championship events. It must be wide, divided into eight lanes of each, plus two areas of at each side of the pool. Depth must be at least . The water must be kept at and the lighting level at greater than
question: how many lanes are in a olympic swimming pool