10-15 years ago I went to a place which was the Hundred Acre Wood from Winnie the Pooh. It was a field with doors in trees, nothing else, but it was quite magical for the littlies. Very simple.
I can't remember where it was!
Definitely in the SE. Possibly within an attraction, but a very low-key one, I think - definitely not within a big theme park.
Anyone recognise it?