Leif then approached Bjarni, purchased his ship, gathered a crew of thirty-five men, and mounted an expedition towards the land Bjarni had described. His father Erik was set to join him but dropped out after he fell from his horse on his way to set sail, an incident he interpreted as a bad omen. Leif followed Bjarni's route in reverse and landed first in a rocky and desolate place he named Helluland (Flat-Rock Land; possibly Baffin Island). After venturing further by sea, he landed the second time in a forested place he named Markland (Forest Land; possibly Labrador). Finally, after two more days at sea, he landed in a verdant area with a mild climate and plentiful supplies of salmon. As winter approached, he decided to encamp there and broke his party into two groups – one to remain at camp and the other to explore the country. During one of these explorations, Tyrker discovered that the land was full of vines and grapes. Leif therefore named the land Vinland. There, he and his crew built a small settlement, which was called Leifsbudir (Leif's Booths) by later visitors from Greenland. After having wintered over in Vinland, Leif returned to Greenland in the spring with a cargo of grapes and timber. On the return voyage, he rescued an Icelandic castaway and his crew, earning him the nickname "Leif the Lucky".