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 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 people perspective picnic playground playing public quiet relaxing shade shaded shadows shady sheltered sunlight sunshine tranquil trees view viewing-platform visitors wood wooden appearance boy camera casual colors colours decking enthusiast enthusiastic grandson happy-snapper lake lakeside observing photographer photographing photography photos pics preteen Recording sights sightseeing sightseer small snapping snapshot spectator timber young abstract aged background board boards cracked cracks flooring grained grains gray grey knots knotting lumber old outdoors outside patterns pier plank planking planks rough rustic surface surfaced surfaces surfacing texture textured textures wallpaper weathered wood-grains barriers fish fish-spotting handrails Jetty lighting looking pond reeds reflecting reflections searching seeking walkway adults carer couple covered four-wheeled-walker man over-water posts rollators seat-walkers senior-citizens seniors shelter timber-deck walkers woman women angled Australia climb constructed construction curve danger dangerous deoxyribonucleic-acid DNA-double-helix-molecule DNA-Tower double double-helix helices helix helixes Kings-Park lookout-tower Perth public- park skywards spiral spiral-staircases spiraling spiralling staircases steel strength strong structure top tower towering turning viewing-decks Western-Australia