The Heinrichweg is a historical hiking trail around Sulzberg. The trail consists of two overlapping loops, which have been combined here as one (H1 + H2).
The start is in Sulzberg at the church, then you first follow the signs H2 until you come out at the church again after 10k. Then you follow the H1. All in all a very varied trail with some historical attractions, such as the ruins of Sulzberg Castle and the oldest medicinal spring in the Allgäu. Parking is available in Sulzberg at the town hall, here you can also deposit food and drinks, as you will pass by here again halfway through.
More information at https://www.sulzberg.de/83-0-Wandern.html