Pretty cold day. -10 when we got to the lake. Had my brother and his two young grandsons. Ice was 2' thick. Could have driven semi over that. Bad day for my auger engine not to run. Very frustrating! Very thankful for a kind gentleman who allowed us to use his to cut a few holes. The children complicated things a bit but we were able to manage. Water seemed pretty murky. A few small rainbow were iced.