How did early viking settlers try to shape perceptions of greenland to draw others there? how accurate were their descriptions of the island?

the vikings wanted to keep iceland to themselves, it was lush, fertile and inhabitable. they named the island iceland to keep others away from it and uninterested, and found greenland, an icy frozen tundra-like island. they named it greenland, luring others to the wrong island where no crops grew, cleverly hiding their own secret farmable island