The Troll Trail is a short walk marked by signs with information, pictures of trolls and troll statues.Most Icelanders believe in trolls, elves, and hidden people. Icelandic trolls live in rocky mountains, deep in the uninhabitable Icelandic highlands. Habitually described as big, stupid and greedy—but sometimes kind and wise—the trolls of day and night occupy an immense portion of Icelandic folklore.Like elves, trolls become enraged when one does them harm, but one can expect to be richly rewarded when helping a troll in need.