The two coastal resorts of Mers and Le Tréport look out across the English Channel and are seperated by the river Bresle. They share a station terminus built by the Compagnie du Nord in 1872. The line runs inland to the village of Abancourt where connection is made with the Amiens - Rouen line, now electrified. Our rural single track line branches away from Abancourt to the east, serves Grandvilliers, and at Milly-sur-Therain becomes double track for the remaining few kilometres to Beauvais.
At the beginning of the last century, Mers Le Tréport was the favoured seaside resort for Parisiens, being the closest to the capital. The only through train from Paris to Le Tréport on this route is on Sunday mornings and it takes about three hours. It returns on Sunday evenings.
During the rest of the week, a change at Beauvais is mandatory. Friday afternoons is the busiest period on this country line.