What are the rules for serving in beach volleyball?

• Where: anywhere in the service zone, the 8-metre-wide area behind the end line. The server may move freely in it.
• Feet: at the hit, or at take-off for a jump serve, the server must not touch the court, the end line or the ground outside the service zone. The foot may not go under the end line.
• If sand pushed by the server moves the line, that is not a fault.
• The hit: one hand or any part of the arm, after the ball is tossed or released.
• One toss or release. If the ball lands without being touched or caught by the server, it counts as the serve, and no second attempt is allowed.
• Time: within 5 seconds of the first referee's whistle. A serve hit before the whistle is cancelled and repeated.
• The ball must cross the net between the antennae and may touch the net on the way.
• The serve is a fault if the ball touches the server's partner, fails to cross the net, lands out or passes over a screen.
• The receivers may not block a serve, or attack it while it is wholly above the net.

The serve starts every rally, so it is kept to one clean action against a short clock. The allowance for moving sand recognises that lines on a beach are ribbons, not paint.