outdoor sport water ski water skiing water sport coast estuary fun leisure man Mawddach power sandbanks ski skier skiing speed splash surge tow wales water welsh spray boats buildings city clouds harbor ocean action active activity adult balance bay care dangers driver enjoy entertainment extreme fast handling jet ski jet skiing male manoeuvrability mobile mobility movement outdoors pastime personal-watercraft popular power sport recreation safety skill summer tourists trail transport transportation travel turn water-sports wave-runners wild blue holiday horizon play red ripples sea sky vacation wake waves daring enjoyment jet-ski jet-skiing motion 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 across-the-river background bridge cars colors colours contrast contrasting freeway gray grey light rippling scenery scenic shadow shadows shrubbery shrubs sunlight surfaces traffic trees truck vegetation vehicles views train