its so nice to see this korketrekeren is one of my favorite activities.
this is one of the things I recommend people who visit
Oslo in the winter to do.
but my favorite is fat bike biking in the dark. a I often end up on vettakollen and u can hear the laughter and see people going down the hill.
We didn't get to Vettakollen this easter, we went skiing from Frognerseteren via Kikutstuen to Ammerud. Probably some 40 km. I suppose that's a day trip for the sportsmen starting early morning, having the skiing equipment optimized for going in the skiing tracks, and doing this regularly. For us it was three solid days.