Sonja Gruber
Fundamentals Instructor
Training Specialty:
Stress management
Weilheim in Oberbayern, Germany
Instructor Level
Sonja Gruber is no longer certified
Sonja Gruber is no longer certified and does not partake in internal trainings or seminars from the Wim Hof organisation. They are not qualified to teach the Wim Hof Method.
Sonja Gruber
Sonja is no longer a Certified Wim Hof Method Instructor
