This assumes you're in the Nelson paddock...

You begin by driving all the way to the far east end of the Nelson paddock and parking lot. Beyond the garage or shack (with the air), you'll see a small access road. It curves to the north and runs behind fencing and billboards.

Follow this narrow road all the way around, as it curves back to the west or left. You will find yourself in the Fabi paddock and parking lot near the Fabi "tower" (if you can call it that).

This road is narrow so use car [ed: oops, care!] when passing oncoming traffic...