height heights high metal observation observation platforms platform platforms poles protection protective railing rails rungs safety slide stairs steps support supportive tree viewing viewing platforms views aerial-work-platform articulating-boom-lift basket-crane boom-lift cage cherry-picker cherrypicker compact danger dangerous elevated elevated-work-platform extension hydraladder hydraulic-arm hydraulic-lifting-system hydraulic-platform hydraulics lift looking-up maintenance man-lift manoeuvrable mobile-hydraulic-platform nifty-lifter raised raised-platform tall trees up-high work workplatform Harness men men-at-work roof roof-work roofing safety-harness self-propelled workmen animal animals arrow arrows direction directions humor humour railway right sign slow snail speed station traffic train trains blue clouds couple girl group long narrow ocean people perspective piers seaside sky visit water wind woman communication commuting public rail railroad terminal track tracks transport transportation travel traveling architectural architecture atrium atrium-casino cantilevered-platform capacity casino complex convention-center convention-centre exhibition-center exhibition-centre gardens high-rise highrise hotel huge iconic landmark large mall modern museum palm-trees palms public-cantilevered-platform resort Restaurants scenic shops Singapore Skypark skyscraper theatres towers barrier boards bollards cones conical deck decking Jetty metallic reflections ripples rippling river river views riverside shiny waterway wiring wood wooden boards wooden platform active activities adventure adventure-playground angles children children’s-playground climbing climbing-platform curved curves equipment families fun kids leisure light lookout observation-platform park path paths peaceful picnic playground playing quiet relaxing shade shaded shadows shady sheltered sunlight sunshine tranquil view viewing-platform visitors wooden England