active activities adults adventure care children children’s playground climbing colorful colourful community enjoying enjoyment equipment families fun grass grassed area green greenery kids leisure parents park parks play play area playground playing playing fields recreation recreational safety sand sandpit shade shadows sheltered slides suburban sunlight sunshine supervise supervising supervision swings trees button button holes buttoning buttons children’s buttons clothing color colored colors colour coloured colours concave convex decorative different display fasteners fastening form groove grooved hole holed holes novel novelty plastic rim rimmed rims shape shaped shapes shiny size sized Sizes texture textured textures two holes two-holed variety children’s-playground coloring colouring leisure-area multiple-activities opportunities parental-supervision play-equipment playcenter playcentre safe-play shelter toys under-cover youngsters