This is a newer Nuk (nook) of Caledonia, built just last year. This area used to be just another entrance to the parking lot, now it's a huge garden and gateway to the Kinsmen Park, featuring trees, flowers and picnic tables. All right next to the Grand.
Because nano caches in public places like this can look weird, I've made a really specific hint, follow it and there shouldn't be a problem!
Good luck!