Here is a video of frozen Lake Mendota, one of two lakes that define the isthmus which Madison, WI was built upon. The other is Lake Menona (which I did not visit). I don’t recall ever looking out onto a frozen lake before….and it was so cold (at least for me, and I was wearing 2 jackets and a scarf wrapped around my head)! I also felt the pull of the lake asking me to attempt to walk out to the center of it. However, I did not want to die so I did not walk onto the frozen water.