Königssee, Germany
The walk from Salet to Obersee and Röthbachfall is often grouped together as one excursion, but the trail does not feel the same from beginning to end. The first stretch to Obersee is straightforward, the path around the lake requires more attention, and the section beyond Fischunkelalm becomes far more exposed to the sun.
We hiked the route in August 2026 and, based on our experience, I would describe the normal Salet to Röthbachfall route as moderate. It is not technically difficult for someone comfortable on mountain trails, but it is also more than a flat walk beside a lake.
Salet to Obersee is the easiest part
From the Salet boat landing, Obersee is close enough that you do not need to be planning a full hike to visit it. The approach is relatively easy and soon brings you to the western end of the lake and its well-known wooden boathouse.
This is also where different kinds of visitors begin to separate. Some continue along the trail towards Fischunkelalm and Röthbachfall, while others stay around Obersee itself. During our visit, we saw people spending time beside the lake and some who had come mainly to relax and swim rather than continue on the longer hike.
So if you are travelling with someone who does not want a several-hour mountain walk, Obersee can still work as a destination on its own.
The path beside Obersee needs more attention
The trail becomes more demanding once you continue beyond the easy approach.
Instead of remaining directly beside the water on a flat path, it begins to follow the rocky side of the lake. There are uneven stone and wooden steps, rougher ground and sections where cables or railings provide support.
We wore hiking shoes and I would strongly recommend them for anyone continuing beyond the basic Obersee visit. Good grip is useful on the rockier sections, particularly if the ground is damp.
I would also mention the exposure for anyone who is uncomfortable with heights. I did not find the maintained route frightening, but there are places where you are clearly aware of the slope beside the path and the lake below. Someone with a strong fear of heights may find those sections more difficult than the official trail rating suggests.
This is why I personally prefer calling the overall route moderate rather than simply easy. Elevation gain is only one part of trail difficulty. Narrow paths, uneven footing and comfort with exposure matter too.
Fischunkelalm is the natural break point
Fischunkelalm sits at the far end of Obersee and divides the hike neatly into two very different sections.
Before it, most of the interest comes from the lakeside terrain. After it, the landscape opens into a broad valley leading towards Röthbachfall.
During our visit, Fischunkelalm had toilets, food and drinks available, making it the obvious place to stop before continuing. I would still carry my own snacks and water rather than relying entirely on the hut, especially because opening times and services can vary.
If you are already tired when you reach Fischunkelalm, this is also a sensible place to reconsider whether you want to continue. The walk back to Salet still requires retracing the same rocky section around Obersee.
The main challenge after Fischunkelalm is exposure
The trail towards Röthbachfall did not feel more technical to us than the path beside Obersee, but the conditions changed significantly.
The valley is much more open, with less shade, and on a warm summer day the sun can make this section feel harder than the terrain itself suggests. We visited during hot, humid weather and noticed the difference almost immediately after leaving the more sheltered area around the lake.
For a summer hike, I would carry enough water for several hours, along with sun protection, sunglasses and a cap. We also brought snacks.
This is one of those routes where the same trail could feel very different on a cool morning compared with a hot afternoon.
Navigation was straightforward, but we still used AllTrails
The established route towards Obersee, Fischunkelalm and Röthbachfall was generally easy enough to follow, but we still kept AllTrails available.
I like having a trail map even when the path seems obvious, particularly in mountain areas where several routes can branch away from the main excursion.
The important distinction comes near Röthbachfall. The standard excursion and the rough terrain higher above it should not be treated as the same route.
We continued beyond the maintained trail after seeing other hikers going higher. That section became considerably steeper, rougher and more demanding, with rocks and exposed roots. It is not something I would include when judging the difficulty of the normal Salet to Röthbachfall hike, and I would not recommend following it simply because we did.
Röthbachfall may not look like the photographs
One thing worth knowing before setting out is that the appearance of Röthbachfall depends on conditions.
During our August visit, the waterfall was difficult to make out from the normal lower area. From there, the rock face looked almost dry compared with the photographs we had seen beforehand.
That did not make the hike disappointing.
I would actually avoid treating Röthbachfall as the single payoff at the end of the route. Obersee, the lakeside path, Fischunkelalm and the open valley make up most of the experience. If the waterfall happens to have a strong flow during your visit, that adds to the day rather than determining whether the entire hike was worthwhile.
Who is this hike best suited to?
I would recommend the full route to someone who is comfortable walking for several hours, has proper footwear and does not mind uneven mountain paths. You do not need advanced hiking skills for the maintained trail, but some sure-footedness helps around Obersee.
If narrow paths or heights make you very uncomfortable, I would consider visiting Obersee without committing to the full route. That still gives you the lake, the boathouse and the option to spend time by the water before returning to Salet.
For anyone continuing towards Röthbachfall, I would bring hiking shoes, water, snacks, sun protection and a trail map. I would also allow enough time to stop at Fischunkelalm instead of treating the route as something to complete as quickly as possible.
The main thing I learned from doing it is that this is not one uniform hike. Salet to Obersee, Obersee to Fischunkelalm, and Fischunkelalm to Röthbachfall each feel different, and knowing that beforehand makes it much easier to judge whether the full route suits you.
