Step One: go to the starting coordinates and find the tumbler and read the riddlers message, look low at your feet, people are having trouble with this, it's at the start of the track, down low, see picture of your still having trouble
Step Two: go to the coordinates discovered in step one and read the ivy leaves, look to the left on top of the smaller rock (gps has difficulty locking on
Step Three: Find the joker cache and use the blacklight to find the coordinates
Step Four: Find batman and sign the logbook and swap swag.. please swap of equal or greater value