Xstrata Treetop Walkway, Royal Botanic Gardens, UNESCO World Heritage Site, Kew, London, England, United Kingdom, Europe

walkway forest canopy metal trees spiral staircase stairs nature green leaves sunlight dappled pattern sun summer day outdoor park garden environment architecture design construction perspective scenic view beautiful natural peaceful tranquility outdoors exploration climb climbable above high high up elevation observation lookout viewpoint landscape travel adventure tourist attraction visit sightseeing activity