The sound of the waves. The smell of sunscreen. The feeling of sand in your toes. That, my friend, is the beach asking if you can come out and play. So grab your beach towel and leave the trashy beach read at home. Because days like this call for a coordination-building, calorie-burning, energy-boosting game of wave runner ball. What is a wave runner? Specially designed ball that bounces on water for hours of playing catch in a lake, pool or ocean near you. Wave runner will boost your brain-body connection as you throw the ball at various angles for different effects and leap through the air to catch it.