Aire–Fruges and Rimeux-Gournay–Berck railway (French: Chemins de fer d'Aireà Fruges et de Rimeux-Gournay àBerck; CF du ARB) was a 1,000 mm (3 ft 3+3⁄8 in)
establishing a railway line connecting Berck-Plage to Paris-Plage, following the coastline. The route was designed to connect with the Aire-sur-la-Lys - Berck-Plage