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 children’s playground colorful colourful grass grassed area green greenery play area playing fields sandpit adventure-playground background barrier bolders boulders carved carvings color colour constructed cover covered crawling cubby dark entrance exit hiding hut light lookout rocks shady shelter tunnel uneven woodwork anchored climb danger dangerous dangers grip gripping Harness height high hoisted hold holding immobilised immobilized lines maintenance maritime mast plank repairs rigger rigging risk risks risky rope ropes safety-equipment safety-harness sailing seat seated seaworthy secured securing security ship stop stopped suspend suspended tall-ship tough transport vessel work workman