wir sind im Urlaub - An Overview
In my perception only "im Urlaub" is often in use. The opposite two variants could possibly be legit. But I don't know any person stating "in Urlaub" and I would say "auf Urlaub" is simply slang."In Urlaub" as in now currently being there, appears wholly Erroneous in Upper-Austrian, but I do not learn about the Germans. I have also heard of "auf Ur