It’s a nano but definitely does not look like it.
The log is in the vial. Bring tweezers. Bring your own pen.
9/20/19 update: Cache needs a new vial. However, someone left a nice external log container hanging on the rod. So I decided to leave things status quo. The cache was moved to a location different from the original, near the hanging bike (dead give-away), so I also decided to leave it there at the new coordinates.
Nota Bene: If you are caching in the late spring or early summer, mosquito repellent is highly recommended. They’re wicked this time of the year.