Here is a chance to fine tune your geocaching skills. At the posted coordinates you will find a street light. At the bottom of the street light you will see a plate riveted to the pole. On this plate one line will read U MC- and 8 letters. Enter the 8 letters in the checker to get the instructions to the final location of the cache container in the bonus information.
Make sure to bring your GPSr or phone with your preferred geocaching app as this will be good practice on some geocaching skills that may not be often used.
You can validate your puzzle solution with certitude.