A Mühltal miniature park has been created on an open area of 2000 square meters on the grounds of the Robertsmühle.

The park shows the mills of the Eisenberg mill valley on a scale of 1:20, true to nature and true to detail, as they looked around 1900. Including the associated mill stream and millrace, it demonstrates how the cutting, fulling and grinding mills once worked. A water playground, a natural pond and a historic chain carousel are available for our younger guests.