I have build a physical playground in my backgarden. A swing + climbing thingy, for my 2 kids (2+5 years old) and now want to expand it - to a awesome, non-serial/linear, crawling extravaganza, where the little ewoks can roam. I already have some of the basics nailed down, e.g. the 2 trees and the swing, which are kinda not possible to move around. But the layout of the rest, could be fun to iterate on.
-so all of a sudden, its actually a level design process

And as its a playground, its not a single player map, but a multiplayer arena. And the level should thus not be linear or "serial", but instead circular / parallel (with some crossovers) in either the vertical plane (Y) or on flat plane (X/Z) -and maybe both....
So any level designers out there, who could come up with good ideas or fast scetches?
Or maybe even some which have dabbled with playground design?
Here is the case:
The present terrain mesh (some elements modifiable):



2D Sketch from above:

Crappy perspective sketch:

Prop Static / physics, that can be used:
3,5 bridge / ladder (fully modelled):

8+ m rope bridge (primitives + hinged joints)

Wood stuff (primitives):


Things I can aquire (hollow tube mesh with ice phys-material):

Additional level props can be aquired from asset store (Harald Nyborg)
Any thoughts or good ideas?