A horrifying and road-kill smell that wraps every store of Iceland truly emanates from Hakarl. The Icelandic may be proud of their national dish but it is something tourist may try at most once.
Hakarl is simply a Greenland shark or any other sleeper shark which has been prepared by fermentation process (basically buried underground for at least three months and afterward hung to dried out for few more months. Since it encloses a high amount of ammonia in it, the newbie may voluntarily scuffle while trying first.
Though Hakarl is readily available in most of the grocery stores of Iceland, it is often served in cubes on toothpicks at porrablot in midwinter.