Conflans-Sainte-Honorine is a French city nestled on the banks of the Seine. Approximately 160 years ago, boatmen capitalized on the development of the Seine to accommodate the first cruise passengers. Thus, Conflans became a strategic hub for the boating industry.

To commemorate this significant evolution in cruise life, a Boat Building Museum was established on the site of a former priory dating back to 1080, which once housed the relics of Sainte-Honorine. Therefore, the history and economic activity of Conflans-Sainte-Honorine are deeply intertwined with this boatman's heritage.

Conflans-Sainte-Honorine is a vibrant city with a marina that can accommodate tens of thousands of people per day. The barge port of Conflans serves as the heart of Seine cruises. Here are a few must-see tourist destinations for those visiting this picturesque city at the confluence of the Seine and Oise rivers.

Bateau-chapelle Je Sers

This boat serves not only as a boarding school but also as the Port Saint-Nicolas, a port of river habitat with the necessary infrastructure to accommodate cruise passengers. This site is one of the most visited along the Seine. Since its foundation in 1935 by Joseph Bellanger, the boat has served as the seat of social mutual aid. Originally built in 1919, the Je Sers Chapel Ship was used to transport coal. Now it serves as a chapel where marriages, baptisms, masses, and other highlights of the life of the boatmen are celebrated. The ship also houses the national chaplaincy of the inland waterways.

Théméricourt’s Castle

Built by the secretary of King Louis XIV, Théméricourt’s Castle served as a convalescent home during World War I and continues this tradition today. Acquired by L'Enfance batelière for a boarding school for children of sailors, it was later given to National Education in 1960 and now houses the administrative services of the boats. This castle stands as one of the city's most emblematic locations.

Church of Saint-Maclou

This jewel of Conflans is a parish church dating back to the 11th century and has undergone modifications over three centuries. Classified as one of France's historic monuments, Saint-Maclou served to preserve the relics of Sainte-Honorine during the late French Revolution, along with two tombstones of the lords of Montmorency. Restored in 1927, it adheres to the canons of Gothic architecture. Visitors can see a collection of stained glass and paintings. This church is a must-visit location for students of art history and anyone fascinated by French civilization's history.