Olympic Beach Volleyball Uses Canadian Treated Sand
via The Toronto Star.
Since beach volleyball became an Olympic sports in 1966, Hutcheson Sand & Mixes of Huntsville, Ontario, has taken the fine-grained sand of choice and made it even finer and more perfect.
Canadian technology is why it doesn't stick to all those very exposed surfaces during a game.
"Hutcheson provides sand that will not compact, thus performing under the best and most adverse weather conditions"