Ключевые слова: activity, aqua, aquatic, australia, boarding, buoyant, cable, convex, electricallydriven, exercise, falling off, fitness, fun, handle, helmet, hydrodynamic, jumping, jumps, learning, life jacket, man, mechanism, park, people, plane, planing, pulling, recreation, recreational, ride, riding, rope, ski, skiing, speed, sport, spray, swim, tow, towing, tumble, turning, wake, wake board, wake boarding, water, water skier,