I always wanted to take an infra-red photo inside a tunnel of trees. We get trees growing either side of country lanes that grow so close they arch over the road. The lane is in Shropshire just a half mile from a very busy trunk road, leading off into the farm land beyond. When I had taken the photo I looked around to find a car behind me (I was in the middle of the road) patiently waiting for me to finish. I hadn't heard the car draw up.
This was the first IR Christmas card, and the one that bore the name Invisible Light.