The market is held every Wednesday morning.
Every first weekend of June, the Painters in the Streets day allows to admire artists in action or exhibitions of works in the open air.
The city also hosts a painting exhibition in July and a photography contest in August.
Every year, on July 13 and 14, Lassay-les-Châteaux organizes Les Entrelacés, a festival of street arts, with various very festive shows.
Each year in July, on two dates, a treasure hunt on the theme of Arthurian legends is proposed to the castle of Bois-Thibault.
On the second Sunday in December, Moment d'Hiver offers free entertainment for children and a meal for parents.
A Christmas market is offered at the end of the year.
