Wear sunscreen and reapply it every couple of hours, since sand reflects sunlight upward as well as down, meaning you get burned from both directions even in the shade of the net. Play barefoot rather than in shoes if the sand temperature allows it, since bare feet grip shifting sand far better than shoe soles and reduce the chance of rolling an ankle. Set the net height to match your group's skill level rather than always using the standard height, since a net that is too high for beginners leads to constant errors and a discouraging game. Call the ball loudly the moment you commit to hitting it, since the soft sand muffles footsteps and teammates cannot always see or hear you coming otherwise, leading to collisions. Keep contact with the ball brief and controlled rather than trying to muscle it, since the unstable sand surface already makes footing and power harder to control, and overhitting sends the ball far out of bounds. Take short breaks in the shade between games rather than playing for hours straight, since the combination of sun, heat, and the extra effort of moving through sand causes dehydration and fatigue much faster than playing on a hard court.