Every Sunday it is also served by a Corail train connecting it to Paris Gare du Nord.

[2] During the high season (from mid-June to the beginning of September), express TER Normandie trains run from Rouen on weekends and bank holidays and TER Hauts-de-France trains run from Laon and Amiens on Sundays and bank holidays.

In 1873 the line was extended to Abancourt, permitting the company to run "seaside trains" from Paris via Amiens.

[3] Until 2 October 1938, Le Tréport-Mers was also connected to Dieppe by the Eu – Dieppe line; part of this closed line, between Saint-Quentin-au-Bosc and Eu, has since become a footpath, the chemin vert du Petit Caux (Petit Caux greenway).

The clock identifies it as a station and echoes the seaside style that corresponds to the environment of Mers.