I thought running on my regular track would be fun in the white, but a tractor had compacted the heavy, wet snow the day before, which had then turned to ice overnight, and that’s what I ran on instead. It was a genuine challenge, but I managed to run without falling into the snow. Success!

Frozen running track in the Jura Photo: PK Read

Another view, looking back at the Jura range, with jet contrails Photo: PK Read