A ski trail in a city!!!

Recently I was looking at my Uppsala map and noticed some interesting figures on it - like a little man skiing. Surely Uppsala, this pretty, flat, regional city doesn't have its own ski field I thought..... I check the legend on the map and found that yes, it was a ski trail and a lighted one at that! Oh my goodness! Who would have thought.
A couple of days later I was visiting the Stadsskogen (that's a pretty forest near the middle of town for those us whose Swedish is dodgy) and I found one of these so called lighted ski trails! They are through the forest, pretty flat with slight undulations and real electic lights for cross country skiing in winter! Ace man! Apparently last year it didn't really snow much, but it often does.