This is a bonus for the adventure lab "Take a Stroll Around The Lakes".
The posted coordinates for the AL are located north of the posted coordinates for this cache.
https://labs.geocaching.com/goto/0306da06-e207-4a21-ac99-869d42ef9633 (link to lab)
After completing the AL there will be a keyword in the journals. Enter that into the checker and you should get the coordinates.
finding should be a 1.0 difficulty.
(I am 5' and used a small tool to put it up, so if you are short like me I would suggest getting a friend or TOTT.)
You can validate your puzzle solution with
certitude.