adult agile ape arboreal Asian climber climbing color colored colorful colour coloured colourful enclosure fur furry great-apes hairy highly-intelligent intelligent long-haired mammals mature orang-utan orangutan pongo-abelii primate primates red red-haired senior strength strong tower angles balance building building-construction building-work climb construction construction-sites construction-work counter-weights crane danger height heights high ladder metal-work perspectives pipes railing rails safety security steel steel-framed straight tall weight weights work work-safe workmen aerial roots backgrounds climbing vine close-up cream creeper cultivar cultivars decorative distinctive evergreen flora foliage green groundcover Hedera horticultural horticulture ivy landscaping leaves ornamental patterns plant tendrils twining variations variegated variety veins vigorous evergreen vine white active activities adventure blue children children’s-playground equipment families fun holiday-park holiday-resort kids leisure open-air play playground playground-equipment playing safe-play sand sandpit shade shaded shelter sheltered supervise swings under-cover youngsters