What do the Icelandic sagas say about the Viking voyages to Vinland?

Yes, they reached it, but they never really settled it. Around the year 1000, Norse sailors from Greenland set foot on the coast of North America, roughly half a millennium before Christopher Columbus. Only one Norse site in Canada has been confirmed, L'Anse aux Meadows in Newfoundland, and the United States has none.

The voyage came in steps, each driven by one person pushing a little farther west. Erik the Red, banished from Iceland for three years after killing several men, sailed west and founded the first permanent settlement in Greenland in 986. Around the same time a merchant named Bjarni Herjólfsson was heading to his father's farm in Greenland when he was blown off course. Greenland itself had little timber or iron, so its colonists launched expeditions to the west to fetch them.

The sagas name three lands beyond Greenland: Helluland, Markland and Vinland. Who found Vinland first? The sagas disagree. In one, Leif Erikson, Erik's son, was blown off course on his way from Norway to Greenland. In the other, he bought Bjarni's ship and set out on purpose. Both were written down in the 13th and 14th centuries, long after the events.

So the ground matters more than the stories. L'Anse aux Meadows had no stables, farms or cemeteries, which suggests a winter base and ship-repair station rather than a village. The Norse built no lasting colony, and by the 15th century even their Greenland colonies had been gradually abandoned.