Fischunkelalm is a working alpine pasture and seasonal refreshment hut on Obersee’s southeastern shore, about 100 m from the water. Come for the green meadow, old Kaser and the mountain setting at the far end of the lake; expect a drink and simple snack, not a full restaurant meal. It’s a real outing, not a drive-up stop. From the Königssee landing, the boat to Salet takes about an hour each way. From Salet, the walk past Saletalm and around Obersee to Fischunkelalm is 5.5 km round trip, about 1 hour 45 minutes of walking with 119 m of ascent and descent. Add the boat time and check the seasonal Salet timetable, especially the last return sailing.