Day four in Derbyshire we woke up to a light fog and a thick frost. San Francisco gets one used to the former but not so much the latter. I popped out and managed to take a few photos before either had cleared. This is the gate at the bottom of my parents' drive:
Later on, on a walk above Grindleford, you could see the fog sitting in the Hope Valley below:
A few more photos from the day are on Flickr.