Why is the Starzlachklamm gorge near Sonthofen called “Starzlachklamm”? The Starzlachklamm gorge in Sonthofen in the Allgäu is an impressive natural monument and one of the most beautiful gorges in Bavaria. Between steep rock faces, rushing waterfalls and turquoise-green water, the gorge offers an unforgettable nature experience for hikers, families ...