Arriving at GZ, you will see some sort of puzzle container. You will need to use the unique tool that's with the container to find the correct combination. Line up the tool with the correct letter which then you will be shown 3 numbers. But, the three numbers show are not in order. Can't locate the cache? Look near the tunnel.
This cache can not be accessed from 95, please don't attempt to park on 95 and get to the cache. Use the parking coordinates provided.