light in the middle of the tunnel
The game is to ride everywhere, where “everywhere” involves dividing our world into squares ~300 yards on a side and visiting them all, and “riding” sometimes involves what one might call “walk-a-bike”.
Sooner or later, you end up in places like this.
It’s a pretty fun game.
And hope there isn’t a flash downpour in the upstream catchment on a clear day. That is why the ancient Romans considered water as res ferae. No one knows the mind of water.