Eleven people were arrested at the Ruapehu Mountain Mardis Gras in Ohakune at the weekend.
Police say the arrests were related mainly to alcohol and disorderly behaviour offences.
Three people are expected to appear in Ohakune District Court on charges of wilful damage after throwing snowballs that smashed the windscreens of two vehicles.
They could face further charges, police say.
More than 1000 people attended the festival.