action active activity adult balance bay care dangers driver enjoy entertainment extreme fast fun handling jet ski jet skiing male man manoeuvrability mobile mobility movement outdoors pastime personal-watercraft popular power power sport recreation safety skill speed sport spray summer tourists trail transport transportation travel turn water water-sports wave-runners wild daring enjoyment jet-ski jet-skiing motion outdoor outside power-sport quick river seated waterways advice alert appropriate-behavior appropriate-behaviour behavior behaviour caution communication freestyle freestyling information informing limitations limited restricted restrictions risk risky riverside sign signs warning warning-sign watch watch-out Australia culture dare hire personal watercraft rental stand-up personal watercraft water sports