Ducasse de Mons (also known as the Doudou Festival) is a traditional and vibrant annual festival held in Mons, Belgium. The event celebrates the town’s rich cultural and religious heritage, featuring a series of processions, performances, and historical reenactments. The highlight of the festival is the Lumeçon, a dramatic battle between Saint George and a dragon, which takes place in the main square. The festival is recognized as a UNESCO intangible cultural heritage event and is a lively celebration filled with music, parades, and community gatherings, drawing visitors from around the world to experience the unique traditions of Mons.