The letterbox is at the posted coords.
If you want to follow Lexie to the letterbox, start at the reference point
Lexie and I walk in this park quite often. Today, while we were here, she wanted to hide another letterbox with the cute rabbit stamp I picked up at an event. Thanks, XZQ&Dad, for the stamp!
The Lions Club has donated several benches to the park. Wander the park with Lexie and find each bench. Somewhere on each bench are parts of the final coords that will take you to the letterbox.
Please leave the stamp in the cache. There is no ink since it's too cold in the winter. You will need to bring your own.