How about an fluorescent pink paint job on the other side? Glow in the dark? Might be able to get some cash back then.
There might be a surveying company in town that has experience in this.
Barrier and Sibbald Meadows pond were still covered in ice, and Sibbald lake had a tiny bit of open water at the north end on Friday. Didn't bother driving any further than that.
Those questions would best be directed towards potential guides - you'll be able to tell how good they are just from their responses (or lack thereof).