Quick and easy grab at the rest area exit. There's plenty of room to pull off the exit ramps but be mindfull of any traffic. Bring your own pencil.
The story I got (unvarified and at least 2nd hand) was the land owner was charging the government $1 a load for dirt for the building up of I-49 and he became very wealthy and donated the land for this rest area. The lake is called Dubuisson and is spelled a few different ways. I may check for facts one day, but for now its the story I'm sticking to. I'm hiding 3 easy ones for now. There is also another older cache in the area that at the moment is disabled, but will be back up soon. There is also room for a couple more and I or someone will get to adding them soon also.