active activities adults adventure children children’s-playground climbing color colored colorful coloring colors colour coloured colourful colouring colours community equipment families fun kids leisure leisure-area multiple-activities opportunities parental-supervision parents play play-equipment playcenter playcentre playing safe-play safety shelter sheltered slides supervise supervision toys under-cover variety youngsters adventure-playground background barrier bolders boulders carved carvings constructed cover covered crawling cubby dark entrance exit hiding hut light lookout park playground rocks shade shaded shadows shady suburban sunlight sunshine trees tunnel uneven woodwork