The private Christian Langheinrich donated the property behind the labyrinth to the beautification association in 1886. In line with romantic ideas, a grotto was created there, a cherub's head was carved into the natural stone above it and, in keeping with tradition, a plaque was dedicated to the donor. Grottoes were popular in landscape gardens; they transitioned from the cultivated park to the 'natural' part just like here, where the grotto marks the start of a steep serpentine path leading down the slope to the old diabase quarry.
The founder, Christian Langheinrich, was a rope maker. These cords are called North German, because they had to cross (weave) long, thin ropes (cords) to make thick ropes. For the long ropes, a 400 meter long, free track was needed to braid the ropes. This later became a street in Hamburg: the Reeperbahn.