The Bassin de l'Arsenal is a boat basin in Paris. It links the Canal Saint-Martin, which begins at the Place de la Bastille, to the Seine, at the Quai de la Rapée. A component of the Réseau des Canaux Parisiens, it forms part of the boundary between the 4th and the 12th arrondissements. It is bordered by the Boulevard Bourdon on the 4th (westerly) side and the Boulevard de la Bastille on the 12th (easterly) side.