Krampus is the evil twin of Santa. When good kids get presents from St.Nicholas and Santa, those who were naughty should be scared of Krampus. Krampus's appearance includes a goat's beard, horns, an oxen's tail, and the devil's face.
On the 5th of December, before St. Nicholas Day, is the Krampus. Young men wear fur, tails, and devil masks, take branches as a weapon and go through the cities looking for bad boys and girls. There are even special processions, called Perchtenläufe. These are really scary but spectacular performances of pagan rituals.
One of the biggest performance is held in Henndorf near Salzburg. In other areas, this show can be found around the 21st of December, closer to Christmas.