Several days in a row now the overnight frost has been so heavy it looked, in Ambleside, like a light snowfall, but the last snow at this level was 9th/10th of December.

There is a small tarn near Lily Tarn that is only ever about 2 feet deep at the most. It is of course frozen over; the ice is broken in a couple of places, and it is about 2 and a half to 3 inches thick. People and dogs have been walking on it. I understand that ice needs to be at least 4 inches thick for it to be safe to walk on.