Nardinine’s denizens worship their planet as a god and consider dirt, grime and other filth to be sacred.  Bathing is unheard of to the Nardininians, so it will be a good idea for you to abstain from it as well, during your stay.  Luckily, you will arrive on one of the holiests of days for the Nardininians, and will be asked to participate in the ceremonial mud-wrestling.  This will give you a nice coating of Nar din ine soil to wear throughout your stay.