We did this ascent as a day walk from Niederau as part of a weeks holiday there.
We walked from Niederau to Hopfgarten, approx 4 miles on tracks and minor roads, via small hamlets and farms near Penningdorf. It was a hot sunny morning. There is a small ascent, followed by a descent of almost 300m down to Hopfgarten. As the weather forecast was for thunderstorms and heavy rain in the late afternoon, we decided to speed up the ascent of Hohe Salve by taking the cable car to the middle station at 1200m and walk the remaining 600m to the summit. Here we enjoyed hazy views, as the clouds were building up for the coming storm. We quickly returned to the middle station and caught the cable car down the remaining section. Fortunately we decided to catch the train the short distance to Worgl and the bus back to Niederau, as by 4pm there was an epic thunder and lightning storm with torrential rain.