LandvŠttir (land spirits) are mythical creatures in old Icelandic literature and stories. They are chthonic guardians of specific grounds, such as wild places. They can shapeshift into troll-animals endowed with magic power and super strength.
The biggest of them dwelled in four places in Iceland: a dragon in Vopnafj÷rur, the bird in Eyjafj÷rur, the bull in Breiafj÷rur and the giant in the south.
When Norse seafarers approached land, they reportedly removed their carved dragon heads from the bows of their longships, so as not to frighten thus provoke the landvŠttir to attack, thereby incur bad luck from them. Icelandic culture continues to celebrate the supernatural protection over the island, and four landvŠttr can still be seen in the Icelandic coat-of-arms: a troll-bull, troll-eagle, dragon, and handsome giant. In modern day Iceland, stories still abound of the landvŠttir (also known as huldufˇlk, the hidden people, often hard to distinguish from ßlfafˇlk, i.e. elves). It is said that work crews building new roads will sometimes divert the road around particular boulders which are known to be the homes of these people.
Landnßmabˇk tells of a time when King Haraldr Gormsson, King of the Danes, intending to invade Iceland, orders a wizard to travel to Iceland and tell him of what he sees there. The wizard goes in the form of a whale, and goes west of the north of Iceland. There he sees that all mountains and hills are full of landvŠttir, some big, and others small.
When he comes to Vopnafj÷rur he tries to walk on land, but is thwarted by a great dragon who is followed by many worms, bugs and lizards who breath poison on him. So the wizard tries to go to the west, to Eyjafj÷rur.
There he is met by a bird, with wings so long that they touch the mountains to each side of the fjord, along with many other birds. The Wizard continues west and south to Breiafj÷rur and heads to land where he meets a giant Bull who wades into the sea and bellows at him mightily, followed by many landvŠttir. The wizard goes south around Reykjanes and tries to swim ashore on Vikarskeii.
There he met with a stone giant armed with a staff of iron, taller than the mountains and with many j÷tnar following him. Next the wizard tries to go to the east. There he sees nothing but sands and wastelands with tall waves crashing its shores, where long ships cannot land.