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 city city square group pedestrians people strolling students sun light sunny walking black competition cutout happy isolated jog joy man run runner shadow silhouette sport sportsman adults alongside backpacks bicycles bikes crash-helmets cycle cycling cyclists energetic energy environmentally-friendly exercise fit fitness helmet helmets on-the-move outdoors outing path pathway pedal-power pedalling pedals pushbikes safety-helmets sporty track transport transportation travel travelling wheels youth