The summer festivities of the village perched on the Yonne valley
Mailly-le-Château, a medieval village perched on the cliffs overlooking the Yonne valley, livens up its two districts — lower town and upper town — throughout the summer with its traditional festivities. A ball on July 14th, village festivals with carousels and fireworks on August weekends, and the Gaieté festival at the end of May punctuate the festive calendar of this picturesque village 30 km south of Auxerre, offering residents and tourists great opportunities to get together.
Mailly-le-Château is one of the most picturesque villages in the Yonne. Located 30 km south of Auxerre, this medieval town is distinguished by its double location: the lower town, nestled on the banks of the Yonne river and the Nivernais canal, and the upper town (176 m) which majestically overlooks the valley from its limestone cliffs.
The village offers several festive highlights spread throughout the beautiful season, combining local traditions and rural conviviality.
On the last weekend of May, Mailly-le-Château hosts the fête de la Gaieté, the first festive event of the season. A friendly gathering for the inhabitants of the village and its surroundings, it marks the beginning of the summer season in a light and joyful atmosphere.
In the French republican tradition, the village organizes its July 14th ball on the evening of July 13th, a dancing vigil that brings together residents and summer visitors under the stars. Music resonates between the tuffeau houses and the cobbled streets of the upper town for a festive and patriotic evening.
It is in August that the festivities reach their peak in Mailly-le-Château. Three consecutive weekends offer village festivals including:
The fireworks in Mailly-le-Château benefit from a spectacular setting: launched from the promontory overlooking the Yonne valley, they offer a unique panorama of the river's meanders, the Nivernais canal, and the limestone cliffs. The château terrace, equipped with an orientation table, is the best viewpoint to enjoy the show.
Mailly-le-Château has remarkable historical heritage: a 14th-century castle with its medieval ramparts, a 13th-century Saint-Adrien church, and a well-preserved urban ensemble. This exceptional heritage setting gives the summer festivities a special atmosphere, blending history and contemporary conviviality.
The 2026 summer festivities of Mailly-le-Château will begin at the end of May with the Gaieté festival and will continue until August with the July 14th ball and three weekends of festivals with carousels and fireworks. In this village perched on the cliffs of the Yonne valley, each fireworks evening offers a unique panoramic show.
The 2026 festivities of Mailly-le-Château will take place from late May to late August according to the village's traditional program. The fête de la Gaieté will launch the season on the last weekend of May, followed by the July 14th ball and the three August festival weekends.
Carousels, children's entertainment, and panoramic fireworks over the Yonne valley will be on the agenda for these popular events in this exceptional medieval village. The detailed program will be published by the town hall in spring 2026.
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Village de Mailly-le-Château
Place du village, 89660 Mailly-le-Château