Carnival reaches its climax in big street processions with elaborately decorated floats, usually on Rosenmontag .
Carnival celebrations happen mainly in the Catholic parts of Germany.
Nevertheless, Karneval parties do occur in some places in the north of Germany. Carnival season is traditionally seen as a chance for people to go wild and let their hair down before Lent starts on Ash Wednesday. Carnival is a regional festival and is celebrated in different ways according to different local traditions. Carnivals are held in southern German cities, and in the Rheinland cities of Mainz, Aachen, Bonn and D sseldorf. The biggest and zaniest Karneval is in K ln .