Water basketball is a water sport, which mixes the rules of basketball and water polo, played in a swimming pool. Teams of five players each must shoot at the goal with a ball within a certain time after gaining possession. In the Netherlands, people have been playing water basketball (known there as waterbasketbal) since the 1970s. In the Netherlands it was played by people with a handicap. Besides regular tournaments, they also organize a national championship where the best teams compete for the official Dutch Waterbasketbal championship title. (Source: Wikipedia.org, CC BY-SA)