If you have a climbing frame in the garden what do you have under it on the ground?
I had assumed it would be recommended that there is some kind of safety surface (play bark or rubber chips or similar) but when I contacted the company who are supplying it to ask what they recommend, they said just grass, and they can advise on grass maintenance (I assume best not to let it get too hard!).
The DCs are 3 and 4, and all the neighbours kids will be on there too no doubt (similar ages) - if they were aged 8 and 10 I wouldn't be concerned.
It is a proper wooden climbing frame/swing set.
Thanks!