Late evening (i.e. starting sometime after 10) rides are fun

I just decided to head south, west and then back - no route plan, just a "lets see where I end up".
The first thing that struck me was how bright my front light is (a B&M Lyt with stand light, powered from a SON). I've never taken it away from streetlights in the dark before - the cats eyes shone back at me for hundreds of yards, the lines on the side of the road leapt out. My black shoes were bright as they crossed the side of the beam. I'd never noticed this because my commute is under street lights, and it's practically light as day all night.
The second was how quiet the roads were. I met more sheep than cars (thankfully they were all still in their fields).
The third was the fog. I could always see the stars, but at times struggled to see the side of the road next to me. For a good deal of the journey I was very hesitant because I had complete white out. Even dipping my light all I could see was a featureless patch of ground, and I couldn't be sure if it was ground or fog!
Then I would emerge into a patch of clear air and see for miles - bizarre, yet beautiful.
The other thing you can't see in the fog is what terrain is coming up. You have to cycle according to what is under you now - no despair at the length of the hill, no anticipation of the summit, no safety in the descent...
Overall it was a lovely ride - 20 miles of quiet, relaxing pedalling - even if some of it required serious concentration to stay on the black stuff!
Now to find some slightly less foggy nights....