Le Tréport / Mers les Bains Leave a Comment / Uncategorized / By admin View from the cliff-tops Le Tréport is located in the Seine-Maritime department in the region of Normandy. From Paris is 3hours by train with one changes. The funicular is linking the town with the cliff-tops. Aerial view of the town. Cliff view. Mers les Bains.With Eu and Le Tréport, Mers is an integral part of a geographical entity called the Three sister cities, apart from each other about 3 km. The church of Saint-Martin in Mers-les-Bains. The characteristic architecture of the «seaside villas» in Mersos. More to see in Le Tréport:FunicularChurch Saint JacquesEu castleMuseum of glassmaking