Fairs, parades and parties around Brussels We bring you the best plans for Halloween weekend 2025 in Brussels, with plenty of activities during the day and parties overnight. Stay tuned for more updates! Events: The Día de los Muertos will take over Marolles from 27 Oct to 1 November with concerts, workshops and all kind of shows for all ages. Being the main event a parade on Saturday 1 at 19h00 from BD du Midi/Rue des Tanneurs. Saint Gilles hosts their annual Halloween pa