You'll get to Burgeis - the principal trailhead via SS38 ans SS40 from the south or S40 from Reschenpass in the north. In both cases just follow the Vinschgau / Val Venosta Valley.
Altitude gain: 1300m from Burgeis, 500m from Plantapatsch
Duration: 3h from Burgeis, 1h 30min from Plantapatsch
From the lower station of the Plantapatsch cablecar take the trail marked "4". It heads up the mountain on the eastern side of the cablecar which is hidden by beautiful old pine and larch trees. Once above the timber line you are already rather close to Plantapatsch Hut.
From the hut still follow trail no 4 in the direction of Pfaffensee. After one km to the left trail no 9 turns of and leads to the western shore of the lake. It climbs further towards the upper stations of two ski lifts. After the first but before the second ski lift the trail turns onto the south western summit ridge of Watles and leads to the summit.
Usual hiking gear is sufficient.