active activities adventure adventurous care children children’s-playground climbing community designed enjoying enjoyment equipment families fun kids leisure move movement moving parents park parks planned play play-area playground playing prepared recreation recreational safety sand sandpits shade shaded shadows sheltered slides suburban sunlight sunshine supervise supervising supervision swings trees variety adults color colored colorful coloring colors colour coloured colourful colouring colours leisure-area multiple-activities opportunities parental-supervision play-equipment playcenter playcentre safe-play shelter toys under-cover youngsters