Decided to go out with JoeSporty to hide a few caches on the Dowagiac Mill Pond. We may have gotten a little carried away, enjoy!
The cache is hidden at the posted coordinates, just solve the puzzle to access the cache!
Upon arriving at GZ, make your way right in (you'll understand once there). From there, you'll need the numbers found below to access the cache. Solve the puzzle and use the numbers listed as the combination for the locked container. Please be careful and hold on to the container when you enter the combination.
The Difficulty rating is based on solving the puzzle (without a computer), not the hide.

The entire series was placed while using kayaks and that would be the recommended mode of transportation for completing the series as regular sized boats wouldn't be able to get you close enough.
I wouldn't recommend coming out on the ice in the winter either, but to each their own!
Good Luck!