The dog at Grindley Brook

The dog at Grindley Brook lives at the café at the bottom of the staircase. He/she likes to run up and down the locks chasing and retrieving a toy plastic spanner. The toy is put at your feet, and then you are expected to throw it for the dog to fetch. I didn't find out the dog's name.*


*(edit) Thanks to Andrew Denny I can now give the dog a bone spanner name. She's called Bee.

And, just to make it clear, Bee doesn't (necessarily) live at the bottom of the café's staircase. The café is at the bottom of the staircase locks.