Île Saint-Louis is the smaller of the two Parisian islands. It is located in the historic heart of the capital and offers a place to stroll full of surprises. You cross it by its main street, rue Saint-Louis en l’Île, or walk around it along the quays. As you stroll by one can specially admire the numerous mansions of the 17th and 18th centuries. The greediest can deluct in the tasty ice creams from the Berthillon house.