I went on a high school exchange to Graz, Austria, in 1999. We were there a few weeks, including a few days in Italy. Went down via Villach and came back for some reason via Lake Garda. I don't have contemporary notes so identifying the scanned negatives is a chore.
Here's someone from my class (I have a few guesses) climbing a tree in view of Lake Garda, at the north end.