This cache is a bonus for completing the Historic Monterey Adventure Lab. You will need to answer all 5 questions in the lab to obtain the final coordinates for this cache. You can download the Lab here: https://adventurelab.page.link/RTK7
If you don't have the Adventure Lab app, you can download it for free from your play or app store.
This cache is rated D3.0 because of the time you will spend walking around downtown Monterey, not because of the difficulty of the hide, which is more like a D1.0.
Please replace it exactly as you found it.