I’ve hoofed it all over Ireland but my best experience was travelling along the Black Valley (see below, taken very early in the morning) and parking where the lane became a track too broken up to drive on. From there it took several exhilarating hours to reach the top of Ireland. And what a fantastic view. I’ve been lifted up to the top of Mont Blanc (15,781 ft) but give me an Irish or Scottish panorama any day.
Some years ago my late father-in-law flew me over Northern Ireland’s highest peak, Slieve Donard. As we circled around I could see a photographer bent over his camera and tripod. I wonder what his shots were like. Visibility was perfect.