On the west, the chain of the Pyrenees slopes gently down to the great bight, known so sadly to travellers by sea as the Bay of Biscay. From the mouth of the Gironde southward it is further designated as the Golfe de Gascogne. There is no perceptible indentation of the coast line to indicate this, but its waters bathe the sand dunes of the Landes, the Basque coasts, and the extreme northeastern boundary of Spain. The shore-line is straight, uniformly monotonous and inhospitable, the great waves which roll in from the Atlantic beating up a soapy surf and long dikes of sand in weird, unlovely contours. For two hundred and forty kilometres, all along the shore-line of the Gironde and the Landes, this is applicable, the only relief being the basin of Archachon (Bordeaux' own special watering-place), the port of Bayonne,--at the mouth of the Adour,--the delightful rocky picturesqueness immediately around Biarritz, and Saint-Jean-de-Luz and its harbour, and the estuary of the Bidassoa, that epoch-making river which, with the crest of the Pyrenees, marks the Franco-Espagnol frontier. The French coast line at the easterly termination of the Pyrenees possesses an entirely different aspect from that of the west. Practically there is no tide in the Mediterranean, and the gateway between France and Spain through the eastern Pyrenees is less gracious than that on the west. The Pyrénées-Orientales come plump down to the blue waters of the great inland sea just north of Cap Créus with little or no intimation of a slope. The frontier commences at Cap Cerbère, and at Port Vendres (the Portus-Veneris of the ancients) one finds one of the principal Mediterranean sea ports of France, and the nearest to the great French possessions in Africa. On Cap Créus in Spain, and on Cap Bear in France, at an elevation of something over two hundred metres, are two remarkable lighthouses whose rays carry a distance of over forty kilometres seaward. The _étangs_, Saint Nazaire and Leucate, cut the coast line here, and three tiny rivers, whose sources are high up in the mountain valleys of the Tech, the Tet and the Aglay, flow into the sea before Cap Leucate, the boundary between old Languedoc and the Comté de Roussillon. Off-shore is the tempestuous Golfe des Lions, where the lion banners of the Arlesien ships floated in days gone by. The Aude, the Orb and the Hérault mingle their waters with the Mediterranean here, and on the Montagne d'Agde rises another of those remarkable French lighthouses, this one throwing its light a matter of forty-five kilometres seawards. With Perpignan, Narbonne, Béziers and Agde behind, one draws slowly out from under the shadow of the Pyrenees until the soil flattens out into a powdery, dusty plain, with here and there a pond, or great bay, of soft, brackish water, whose principal value lies in its fecundity at producing mosquitoes.