The Dreiweihern are actually worth a trip. However, the two largest ponds have been drained (maintenance work, probably a few more weeks). Worthwhile, as the pond floor is visible for once.
The oven hole is in the Grand Canyon of eastern Switzerland. The Necker, which is still very young here, falls around 100 m over the Nagelfluh rock face and then …
This water spectacle, the Leuenfall, falls 34 meters deep. Originally the Berndlibach drained the area between the Öhrli and the Schäfler. Shortly after the free fall, the water flows into the Wissbach. In winter the Leuenfall can also freeze.