active activities adventure angles appearance children children’s-area children’s-playground color colored colorful colors colour coloured colourful colours cool cooling equipment families fountain fountains fun leisure multiple multiple-outlets pipes piping play playground playing pour pouring safety sheltered slides spout spouting stream streams supervised water water-playground wet wet-area adventure-playground background barrier bolders boulders carved carvings climbing constructed cover covered crawling cubby dark entrance exit hiding hut kids light lookout park rocks shade shaded shadows shady shelter suburban sunlight sunshine trees tunnel uneven woodwork adults streaming supervision unobtrusive