When I was but small, and a ball playing centre half in the primary school team, the pitch of one of the suburban primaries we used to play was got at through a door much like this. Obviously it had a door and not stones, but the effect was the same, and it was truly like stepping in to a secret garden, not dispersed by actually going through, where the scene was like that of a Thomas Hardy novel.
Corners of an earlier time are a key to Folk Suburb.