Windsurfing is a watersport invented in the U.K. by Peter Chilvers in 1958 on Hayling Island, Hampshire. It is performed on a board with a sail. The sail both empowers the board and helps the board change directions. The sport is a combination of surfing and sailing. Windsurfers can travel on either flat or rough water, as long as there is wind. Windsurfing is done mostly in the summer and spring.
Windsurfing competitions can be freestyle or racing around buoys and it features in the Olympics.
Windsurfing sails come in many different sizes. The larger the sails are, the more human strength is needed to control them, but the more power is given to go faster. The different sizes of board affect the speed. Again, the thinner the board, the faster you will go. The range of thickness depends on the materials used.