advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware black care careful caution communicating communication concern crossing danger dangerous double-lines information informing island lookout observant pedestrians reflective refuge risk risks risky road road-sign safety security share sharing sign signs small-traffic-island traffic traffic-flow traffic-island walk walkers walking warning warning-sign watch watch-out yellow cars cautious conditions large-vehicles look-out red road-conditions road-train rural-area semi-trailers signage slow-down speed speed-reduction symbol text trailers transport transportation trucking trucks vehicles white words acceptable access-denied access-limited advising allocated allocation approved authorised authorized automobiles behave blue carpark communicate denied directions directive entry-denied entry-prohibited limited limited-parking motor-cars no-access no-entry not-allowed not-permitted parking permission-denied prohibited prohibition restricted restriction restrictions special-parking unauthorised unauthorized vistors action active activity adult anchorage anchored Australia bay boat boats buoys couple culture dangers dinghy enjoy man manoeuvrability mobility moored moorings motion motor boat motoring movement outdoor outdoors outside pastime people popular power power sport quick recreation river riverside rubber dinghy sailing skill sport spray summer tourists trail travel turn water water sports waterways woman CBD city city center city centre city skyline cityscape Perth authorised-entry-only authorized-entry-only behavior behaviour construction construction-site limited-access balance dare driver entertainment extreme fast fun handling hire jet ski jet skiing male personal watercraft rental stand-up personal watercraft wave-runners wild buoys care expensive luxury speed-boat wealth boy child hair kid night sleep safe