The start point for this route is Scheffau am Wilden Kaiser. Cars may taken as far as the Gasthaus Jägerwirt (910 m). Thereafter the route continues on foot, initially quite gently through woods and meadows reaching the Kaiser Hochalm meadow after just under 2 hours. After that it becomes steeper, running past the southern side of the Sonnenstein, then across slopes of mountain pine and open schrofen terrain, a demanding section up to the Kopfkraxen, a lower peak. On sunny, warm days it is essential to set off early otherwise the ascent will be tortuous. From the Kopfkraxen the route becomes more challenging along the airy, but secured ridge with a short climb up to the summit of the Sonneck. The last section requires sure-footedness and a head for heights.