You will see a lot of these structures in rural environments and some of them have caches in or near them, this is the latest.
As you know, there aren't a lot of places you can place a cache in a bus shelter, but this one is made from ferrous material, so it opens up a lot of possibilities.
It will be busy here a couple of times a day during the school week, but at weekends and during school holidays it will be abandoned.