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 abstract appearance background brown colored coloring colors coloured colouring colours conglomerate contours contrast contrasts cracks fissures flaws grit gritty layered layers levels light lines mica natural rock rock-face rockface rocky rough rugged shape shapes silicate stone strata stratum sunny surfaces texture textured textures veins wallpaper