Cova del Alarb is in the Alberes Mountains to the south of Argeles-Sur-Mer. It is quite easily reached by leaving the town and going under the motorway towards the Chateau de Valmy.
The path up from here is clearly marked as is the position of the dolmen when it is reached. It is around 10 km to the east of Balma del Moro.
The views from the path up the hill and from the dolmen itself are superb, making it well worth a visit if in the Languedoc-Rousillon area.