So far he had failed to realize two of the most important things in the geography of this region: the broad southern entrance into the Gulf of St. Lawrence (subsequently called Cabot Strait), which separates Newfoundland on the north from Cape Breton Island on the south, and the broad entrance into the River St. Lawrence between Anticosti Island and the Gaspé Peninsula.
Yet, whilst staying in Gaspé Bay, he had a very important meeting with Amerindian natives of the Huron-Iroquois stock, who had come down the River St. Lawrence from the neighbourhood of Quebec, fishing for mackerel. These bold, friendly people welcomed the French heartily, greeting them with songs and dances. But when they saw Cartier erect a great cross on the land at the entrance to Gaspé Bay (a cross bearing a shield with the arms of France and the letters "Vive le Roi de France"), they were ill at ease. It is certain that not one word could be understood in language between the two parties, for there were as yet no interpreters; but the Amerindians were probably shrewd enough to perceive that Cartier was making some claim on the land, and they explained by signs that they considered all this country belonged to themselves. Nevertheless, Cartier persuaded two youths, the sons of one of the chiefs, to go back with him to France on his ship, to learn the French language, to see what France looked like, and to return afterwards as interpreters. The boys, though they were practically kidnapped at first, were soon reconciled to going, especially when they were dressed in French clothes!
When Cartier was on his way home he sailed in a north-easterly direction in such a way as to overlook the broad channel between the Gaspé Peninsula and Anticosti Island, but having rounded the easternmost extremity of that large island, he coasted along its northern shores until he caught sight of the opening of the Canadian channel to the west. He believed then that he had discovered the long-looked-for opening of the trans-continental passage, and sailed for France with his wonderful news.
On the 19th of May, 1535, Cartier started again from St. Malo with three ships, the biggest of which was only 120 tons, while the others were respectively 60 and 40 tons capacity. The crew consisted of about 112 persons, and in addition there were the two Indian youths who had been kidnapped on the previous voyage, and were now returning as interpreters. Instead, however, of reaching Newfoundland in twenty days, he spent five weeks crossing the Atlantic before he reached his rendezvous with the other ships at Blanc Sablon, on the south coast of Labrador; for the easy access to the Gulf of St. Lawrence through Cabot Strait (between Newfoundland and Cape Breton) was not yet realized. Once past Anticosti Island, the two Huron interpreters began to recognize the scenery.[4] They now explained to Cartier that he had entered the estuary of a vast river. This they said he had only to pursue in ships and boats and he would reach "Canada" (which was the name they gave to the district round about Quebec), and that beyond "Canada" no man had ever been known to reach the end of this great water; but, they added, it was fresh water, not salt, and this last piece of information much disheartened Cartier, who feared that he had not, after all, discovered the water route across North America to the Pacific Ocean. He therefore turned about and once more searched the opposite coast of Labrador most minutely, displaying, as he did so, a seamanship which was little else than marvellous, for it is a very dangerous coast, the seas are very stormy, and the look-out often hampered by a sudden rising of dense fog; there are islands and rocks (some of them almost hidden by the water) and sandbanks; but Cartier made this survey of southern Labrador without an accident.