The river then flows into the Mediterranean Sea a few kilometres from Narbonne at `` Grau de Vendres '' ( near Cabanes-de-Fleury ) on the border between the departments of Aude and Hérault .
The river then flows into the Mediterranean Sea a few kilometres from Narbonne at Grau de Vendres ( near Cabanes-de-Fleury ) on the border between the departments of Aude and Hérault .