Beautiful and attractive forest trail with narrow and stony passages, plus a staircase in front of a bridge. Caution is advised, as many hikers also use this passage.
Walking from the Herbsthäuschen into / through the Firnsbachtal by bike is less recommended, as there are many carrying and sliding passages (including at the gorge) to be overcome. The area is worth a visit though, wonderful surroundings. Alternatively, the route can be taken by bike from the Herbsthäuschen.