children wearing blue climbing helmets on a climbing wall

green blue yellow hand wood rock climbing wall grips red colourful coloured colored orange wooden woody bolt holds screw artificial indoor outdoor walls bouldering abseiling fun surface equipment footholds routes paths problem solving teamwork belay boldering children activity center centre education fitness boards planks timber weathered risk taking handholds sport challenge shapes cast moulded onto helmet gripping pulling scrambling hanging clasping fingers arms group kids residential competition competing holding fixed wearing helmets safety air vents protection protective wear safeguard headgear