The aim in parkour is to jump, climb, or run over and around any wall, staircase, or fence blocking your path. Usually, this is done in a city environment. The name comes from the French word 'parkour', which means route, or path. A man who performs parkour is called a traceur and a woman is a traceuse. A young French man, David Belle, developed parkour in the 1990s. His childhood friend, Sabastian Fouchan, is considered to have developed 'free-running', which is a more artistic and expressive version of parkour. David Belle traveled to India and says one way he trained was by watching monkeys jump from tree to tree. But, for Belle and others, parkour is as much a mental exercise as a physical one. The aim is to become so skillful it is almost unnecessary to think about the different actions in running through a path full of barriers. Parkour is not exactly a sport. It was not developed for competition. It is more about learning to control mind and body in difficult situations. There are many basic moves in parkour. One example is the underbar. Other movements are the tic-tack, and the kong vault jump. Skillful traceurs seem to go against the laws of gravity. The popularity has spread largely because of parkour videos and communities on the internet. And, if you search on the web, you may even find parkour groups performing their skills near you.