Canines do visit ponds. Ponds in the mountains or on a farm. I have proven that by setting traps at ponds.
I think the Caninines look/wait for Muskrat, Beaver, Rabbits and small rodents. I have seen in the snow, Fox sitting in wait at a Muskrat snow tunnel. I have seen in the snow, Coyote (and Bobcats) waiting at a Beaver trail.
I agree with UB, work the ponds over.
UB, go ahead and Call those ponds the first nite with CR's set. I call many of my trapping locations during all parts of the season. Don't care if I shoot 'em or trap 'em...lol.