That makes no sense. You're not supposed to daydream about ice cream during a Rogaine, you're supposed to crave cheeseburgers.
Your skogs nymphs sound suspiciously urban to me. "Skog" translates to "forest".
Oh. What is the word for "city"?
It was quite hot and that may have helped nurture the ice cream craving - but I think K may crave ice cream all the time. She got some, too, finally, once we got on the road and came across a Dunkin Donuts / Baskin Robbins.
"City" is "stad". "Urban" is "stads", which I think is the form you'd use as an adjective in this context. "Ice cream" is "glass", which is a little disturbing.