Neat, the photos aren't showing up.
These photos are from after we retrieved the quad from the crack that had opened up. Again, at the crack, there was 8" of ice measured with a tape measure, and still, this happened.
Be safe out there. We were only in 3 -4 feet of water with the quad along the edge of a drop off, if it had have been over deeper water it may have been a different story.