Navigation on the River Gudenå in rafts and similar vessels ALWAYS require a permit from the municipality and on some stretches this type of vessels are not allowed.
Executive Order No. 146 of 24 February 2016 on non-commercial sailing stipulates in section 4, subsection 3 the following:
Sailing with timber rafts and other similar vessels may only take place with permission from the municipality.
Contact the municipality where you would like to launch to enquire about the application process. Please apply at least 6-8 weeks prior to the time you wish to launch the vessel.