Great looking layout. Do you add all the cars, buildings, accessories and Klickies to your outdoor layouts or do you just keep track and trains outside?
PS: exposing roots like that is not a good idea, but then it is in the way of playmobil fun 
I did not see all the roots (under the »jungle«), so I hoped to have some, but not so many.
We cutted 2 roots (in the middle) at Saturday and then I will fill up the area again with sand, soil and gravel and with »Mähfix Rasenkanten« (~»Mähfix« lawn edge plates) for the track to be stable.
When the tracks lie in the garden, they will be fixed with some screws (and filled up with gravel for better appearance and with a wood glue and water mixture for better cleaning the rails of leaves, branches, seeds, etc.) and they will stay out all year.
Then I will add buildings, which I will put in the cellar in winter, also the turntable (the top), maybe the roundhouse (we will check it out).
The power system (control central, booster, etc.), the trains, accessories & klickies we will not leave outside. Unfortunately, these things have to be carried into the house after (each) driving.
