Line 4, Line 4 Vavin station. Vavin, Raspail or Montparnasse metro station. Welcome, when the train doors open follow the appetizing aromas of the grilled meat, fish and seafood dishes of 124! The Auberge de Montparnasse welcomes you at 124 Boulevard du Montparnasse. 124 off Line 4, a sure surprise for your senses.