Having passed through the Strait of Belle Isle, Cartier crossed over to the northern coast. Two days of prosperous sailing with fair winds carried him far along the shore to a distance of more than a hundred miles west of the entrance of the Strait of Belle Isle. Whether he actually touched on his way at the island now known as Belle Isle is a matter of doubt. He passed an island which he named St Catherine, and which he warned all mariners to avoid because of dangerous shoals that lay about it. We find his track again with certainty when he reaches the shelter of the Port of Castles. The name was given to the anchorage by reason of the striking cliffs of basaltic rock, which here give to the shore something of the appearance of a fortress. The place still bears the name of Castle Bay. Sailing on to the west, Cartier noted the glittering expanse of Blanc Sablon (White Sands), still known by the name received from these first explorers. On June 10 the ships dropped anchor in the harbour of Brest, which lies on the northern coast of the Gulf of St Lawrence among many little islands lining the shore. This anchorage seems to have been known already in Cartier's time, and it became afterwards a famous place of gathering for the French fishermen. Later on in the sixteenth century a fort was erected there, and the winter settlement about it is said to have contained at one time as many as a thousand people. But its prosperity vanished later, and the fort had been abandoned before the great conflict had begun between France and Great Britain for the possession of North America. Cartier secured wood and water at Brest. Leaving his ships there for the time being, he continued his westward exploration in his boats. The careful pilot marked every striking feature of the coast, the bearing of the headlands and the configuration of the many islands which stud these rock-bound and inhospitable shores. He spent a night on one of these islands, and the men found great quantities of ducks' eggs. The next day, still sailing to the west, he reached so fine an anchorage that he was induced to land and plant a cross there in honour of St Servan. Beyond this again was an island 'round like an oven.' Still farther on he found a great river, as he thought it, which came sweeping down from the highlands of the interior.