On 24. and 25.6.2017 we headed to Grossglockner. At 05.30 we left from Postojna and just before 10h started from Lucknerhaus, via Lucknerhutte, Studlhutte, to Erzherzog Johann Hutte. We slept there. On Saturday the weather was sunny, hot. Towards evening a front passed us, bringing snow. Despite unpleasant forecast, on Sunday at 6h we headed to the summit, and after a good 3h already back at the hut. Unfortunately, descent to the valley was not possible, as it was snowing heavily and constant lightning strikes were appearing. After a good 3.5h of waiting we finally headed to the valley, as the sun shone again. In general, super tour.