The National Maritime Museum invites its visitors to discover how Dutch culture has been shaped by the sea. The building has been completely restored and modernised, the courtyard now covered by a glass roof. The museum includes a restaurant, a waterside terrace and even a replica of the Dutch East India Company ship "Amsterdam" moored outside.

The Bailey-Matthews National Shell Museum and Aquarium, located on Sanibel Island — famous for its abundance of seashells — houses a fascinating collection of shells from around the globe. Explore the Great Hall of Shells, showcasing highlights from the museum's collection of over half a million shells. Discover the Beyond Shells living gallery, featuring aquariums teeming with over 50 species of marine life. Enhance your experience with a guided beach walk led by knowledgeable naturalists, who will share insights into the diverse shells and marine life that make Sanibel Island a unique coastal paradise.

The Saint-Francis of Sales Church, listed as a historical monument, is located near the Palais de l'Île, across the Thiou river. Even if the facade seems a bit austere, the interior of the church is luxurious: the baroque style is expressed through an organ, paintings and a magnificent altar. This church used to host religious relics, such as the graves of Saint Francis and Saint Joan of Chantal, which were there before being transported to the Visitation Basilica.