age ages ancient architecture bronze castro Celtiberian celtic cidás circular citania citanias cities cividades cliff culture defendable defensive elevation fort fortified hill hill-fort hillfort hilltop house houses iron maritime ocean oval peninsula place refuge rock rocks saavem sea security settlement wall walls water active activities appropriate-behavior appropriate-behaviour beams children children’s-playground communicating communication equipment fun green greenery informing kids leisure light limitations limited limits park parks play playground playing rules safety sand sandpit shade shaded shadows shady sign suburban sunlight sunshine trees warning weathered white agile animal arboreal climber color colored colorful colors colour coloured colourful colours dendrolagus-goodfellowi-buergersi distinctive endangered Goodfellow’s-tree-kangaroo highly-threatened joey jumping-ability macropodidae Marsupial mother omnivore omnivorous ornate-tree-kangaroo overhunted Papua-New-Guinea pouch rainforest-habitat rare tree-climber young youngster angles appearance clock clock-face community decorated decoration decorative display exterior external fun-clock height high kid’s-clock lopsided ornamental ornamentation outdoors perspectives play-area style surfaces time time-piece wall-face adults adventure climbing climbing-nets climbing-ropes families frame ground nets netting public roped ropes secure shapes supervision views adventure-playground down log-steps lookout path paths peaceful perspective quiet relaxing rocky rocky-mound sheltered stairs steps tranquil view black & white cables care enjoying enjoyment greyscale lawns lines metal monochrome parents patterns recreation recreational rope slides suspended suspension swing swings