Wiktionary
n. 1 (context uncountable English) An outdoor variant of volleyball played on sand. 2 (context countable English) The ball used to play this sport.
Wikipedia
Beach volleyball is a team sport played by two teams of two players on a sand court divided by a net. It has been an Olympic discipline since the 1996 Games.
As in indoor volleyball, the object of the game is to send the ball over the net and to ground it on the opponent's court, and to prevent the same effort by the opponent. A team is allowed up to three touches to return the ball across the net. The ball is put in play with a serve — a hit by the server from behind the rear court boundary over the net to the opponents. The rally continues until the ball is grounded on the playing court, goes "out", or is not returned properly.
The team winning a rally scores a point and serves to start the following rally. The four players serve in the same sequence throughout the match, changing server each time a rally is won by the receiving team. Beach volleyball originated at the Outrigger Canoe Club, on the shores of Waikiki Beach (in Hawaii, USA), and has achieved worldwide popularity.
Usage examples of "beach volleyball".
Gina said, her voice as youthful and breathless and perkily excited as if she were announcing the score in a game of beach volleyball.
But before she could finish telling him about John, his wife and kids, his career as a fireman, his penchant for barbecues and beach volleyball, and their family traditions, hoping that some of it at least would be translatable from a cultural standpoint, the boy Christopher raced past and tripped over Kà.
Now there's a double-decker baseball stadium, an athletic field house, championship clay tennis courts, beach volleyball (sixty miles from the nearest natural beach), and a parking lot for thirty-five hundred automobiles.
The only thing that saved it was the picture on the front, penguins playing beach volleyball, complete with kiddie penguins making sand castles to one side.