In Germany, Walpurgisnacht, the night from April 30 to May 1, is the night when allegedly the witches hold a large celebration on the Blocksberg and await the arrival of Spring.
"Walpurgis Night (in German folklore) the night of April 30 (May Day's eve), when witches meet on the Brocken mountain and hold revels with their Gods..."
"Brocken the highest of the Harz Mountains of north central Germany. It is noted for the phenomenon of the Brocken spectre and for witches' revels which reputably took place there on Walpurgis night. The Brocken Spectre is a magnified shadow of an observer, typically surrounded by rainbow-like bands, thrown onto a bank of cloud in high mountain areas when the sun is low. The phenomenon was first reported on the Brocken."
—Taken from Oxford Phrase & Fable.
A scene in Goethe's Faust Part One is called "Walpurgisnacht", and one in Faust Part Two is called "Classical Walpurgisnacht".
In some few parts of northern coastal regions of Germany, the customs to light huge Beltane fires are still vivid to celebrate the coming of May, while most parts of Germany have a derived christianized custom around easter called "easter fires".
In rural parts of southern Germany it is part of popular youth culture to go out on Walburgisnacht to play pranks on other people, like messing up one's garden, hiding stuff or spraying messages on other people's property. Sometimes these pranks go too far and may result in serious wilful damage to property or bodily injury.