F: Go to N45°10.653' W88°23.973' and you will see this digit.
These coordinates take you to the disc golf course.
OK. That's enough help for now.
(Scroll down for more clues.)
These coordinates are for hole 6 of the disc golf course, so the letter F should be replaced with the digit 6: N45°11.ABC' W88°23.DE6'
OK. That's enough help for now.