climbing frame 
noun British
A structure of joined bars or logs for children to climb on.Residents say the children are using the structure as a makeshift climbing frame to get on to the roof at night - deliberately damaging the scaffolding as they go....
- The finished playground will include climbing frames, greenhouses, propagation tunnels and woodland space which will be ideal for building dens and a barn.
- All the traditional features, such as climbing frames, swings, see-saws and slides, can be seen but there is so much more besides.