accommodation apartment-blocks architecture black-and-white block-like blocks building buildings condo condominium contrast contrasting costly expensive flats greyscale height high highrise highrise-accommodation homes Hong Kong modern monochrome multi-storey multi-story park pedestrians people perspectives population pricey skyscraper tall tower tower-block towering trees units value views wealth wealthy windows women action active activity adult anchorage anchored Australia boat boats buoys care city city skyline cityscape culture dangers enjoy fast luxury manoeuvrability mobility moored moorings motor boat motoring outdoor outdoors outside pastime Perth popular power quick recreation river riverside safety sailing security skill speed sport summer transport transportation travel water water sports watercraft waterways angles architectural-elements balconies balcony business city-scapes city-views colors colours commerce concrete contemporary curved distance distant edges elements exterior external glass hazy heights high-rise light linear lines recessed rooftops Singapore skyscrapers surfaces towers tree walls appearances architectural box-like holidays hotel hotels surface tourism tourists