Inspiration needed!

Hello!

This is our very bare bottom end of the garden. It’s the last 1/4 of the back garden, gets very limited sun as neighbours have towering trees on both sides, so nothing really grows (including grass) and it’s just a wasted space really. Even the shed is empty!

I have 2 young children and we’re looking for some ideas for changing it up next spring.

The Small raised bed behind the tree was a digging play area/mud kitchen but they don’t want it anymore. (I used to child mind and this was a messy area for it).

What would you use it for?