Coolest low passes I've ever seen was while working/living in the Highlands Scotland. Watching Tornados making runs through the valleys from a hill top was a great experience. Especially during average weather.
Once watched a Tornado scream over one ridge line, followed by a A10 who rolled over inverted at the top and dropped down, though that was very cool.
Took a Scotish girl on a date to the highlands for a picnic, she wondered why we had to ride (battered old GS550) so far instead of just going local. Didn't take long for her to get it..
Ah, the cold war days..
...-Gixer