Funtensee via Saugasse

Funtensee via Saugasse is a difficult, boat-accessed out-and-back from St. Bartholomä on Königssee to the Kärlingerhaus above Funtensee, in the Steinernes Meer. Budget about 20 km (12.4 mi) for the return: the published 10 km and five-hour figure is the uphill leg. That leg gains 1,111 m and loses about 82 m; the return follows the same route downhill. Expect a hard, roughly 10-hour walking day. Most hikers split it over two days and stay at the hut; only strong, well-prepared hikers should plan it in one. The route continues beyond the hut on AV 412, but that long-distance continuation toward Saalfelden is a different trip.

The start is the St. Bartholomä passenger-boat landing; there is no road approach to the peninsula. Park at the paid Königssee lot at Seelände, walk about five minutes through the pedestrian area to the pier, then allow about 35 minutes on the boat each way. The walking estimate excludes both crossings. Check the current timetable and last return sailing before you set out. If you plan to stay overnight, reserve the Kärlingerhaus well ahead. Dogs can join the hike on leash, but the boats require a muzzle.

From St. Bartholomä, follow route 410/412 south along the shore for about 2 km. The mostly level opening crosses the usually dry Eisbach, then climbs on a well-built path above Königssee, with some exposed stretches and views back toward the lake and Obersee. Bends steepen beside the Schrainbach gorge and waterfall before the path dips to the former Schrainbachalm. Its wooden shelter makes a useful rest stop; don’t count on it as a meal stop. Cross Schrainbach, enter the forest and take the left branch into the former Unterlahneralm basin rather than continuing toward Sigeretplatte.

The route’s hardest section is the steep, rock-walled Saugasse ravine. Its 36 hairpins gain roughly 350–400 m in a short stretch. The gravel and stone tread is uneven, so take particular care on the descent. At about 1,340 m, the path tops out in a high basin. Turn around at one of the bends: the switchbacks stacked against the ravine walls are the walk’s signature view and the best place to frame a photo of the trail itself.

Beyond Saugasse, the path keeps climbing more gradually through Bärengraben and Kleine Saugasse into the Ofenloch basin. A broad turn around a shoulder brings the Kärlingerhaus into view; the last metres descend slightly to the hut. Funtensee lies below it on the far side. This is high-alpine karst country, not a lakeside stroll: the Steinernes Meer is rugged and nearly waterless, so plan your water before leaving the lower valley and don’t assume there will be a refill across the plateau.

The Kärlingerhaus stands at about 1,638 m above the lake and serves as an overnight base for longer routes across the Steinernes Meer. The basin is known for cold air pooling in its depression: Germany’s record low of −45.9°C was measured here in December 2001. That was an extreme inversion, not a normal summer hiking temperature, but it gives the high basin a story beyond the hut and lake.