Continuing the epic trip - when we left the M4 for the A46 down into Bath the sun was shining. We had actually climbed to above the fog! The frost was a surprise - was the weather really more severe here in the south than in Manchester? Descending to the town meant going back into the fog.
We stopped overnight with one of our daughters then continued next day, in fog and frost again!
but back in the sun where the road climbs higher.
An interesting trip!