The arrondissement covers the northeastern part of the department and is bordered to the north and northeast by the Gard department , to the east and south by the Gulf of Lyon ( Mediterranean Sea ) , to the southwest by the arrondissement of Béziers and to the west by the arrondissement of Lodève .
The `` arrondissement '' covers the northeastern part of the department and is bordered to the north and northeast by the Gard department , to the east and south by the Mediterranean Sea , to the southwest by the `` arrondissement '' of Béziers and to the west by the `` arrondissement '' of Lodève .