boys care children community enjoying enjoyment fun girls grass grassed area green kids park play play area playground recreation recreational safety sand sandpit suburban suburbs supervision swings high play-area swing swinging active activities adults adventure blue children’s-playground climbing colorful colourful equipment families leisure leisure-area parents playground-equipment playing ramp red safe-play sandpits shade shaded shelter sheltered slides supervise tunnel under-cover youngsters greenery lawns light parks shadows shady sunlight sunshine trees children’s-play-area grassed-area