I will second that, i saw them for the first time on October 12th 2016, on my way to Fort William.
A beautiful warm evening, and these terribly tall towering mountains,almost waiting to fall on top of you,as you passed.
The only thing that spoiled it for me, was seeing one of the park wardens manhandling a magnificent stag onto the bonnet of his Land Rover, by one of the small hotels in the area.
I know gamekeeping is a necessary process, to ensure only the healthiest animals survive, but it looked like the stag was a fresh kill, and being unused to seeing such beautiful animals dead before me, left a lasting impression on me.
Killing for sport, or killing for a genuine environmental reason, either way, such a magnificent creature deserves to live unmolested by us.