Beach volleyball
Beach volleyball is an Olympic group sport played on sand. Two teams, positioned on either side of a net which divides rectangular court, hit volleyball, usually using the hands or arms. It is evolved from indoor volleyball, and the two sports remain very similar: a team scores points by foundation the ball on the opponents' court, or when the opposing team commits a fault teams can contact the ball no more than three times before the ball crosses the net; and consecutive contacts must be made by unlike players. The most important differences between beach and indoor volleyball are the playing surface, and the team size. There are many minor differences as well, including each half of the court actions 8 by 8 meters.
If a jamming player touches the ball, but it continues onto his side of the net, the block counts as the first contact. Open-hand dinks, where a player uses his or her finger tips to redirect the ball into the opponent's court, are banned. It is legal to cross under the net as long as doing so does not hamper with the opponents' attempt to play the ball. Players are not necessary to rotate positions; they must alternate check, but there are no rotation errors.