The Brielle Masquerade is a costume party on the evening of December 5th Klaassielopen in Brielle. Adults and some of the children walk through the streets of Brielle, masked and costumed, past the steps of the museum on the Market, where the mayor and the aldermen await them. Since a few years Sinterklaas has also been present there, asking the costumed people questions. The most ingeniously costumed people can win a prize, that is determined by a jury. The participants criticise the local or national politics or certain malpractices in a playful manner, or represent an amusing situation. Speaking is not allowed, but singing or making music is. The Masquerade begins at 7 PM and ends at 8 PM with awarding the Fons Löbkerprize, a silver-coloured mask that is named after a resident of Brielle who has done much for the Masquerade. Sinterklaas songs are played and there is cake and soup for everyone present.