don't - I went once and it was "an experience" (this is from Wikipedia)
Kæstur hákarl, fermented Greenland shark.
Súrsaðir hrútspungar, the testicles of rams pressed in blocks, boiled and cured in lactic acid.
Svið, singed and boiled sheep's heads, sometimes cured in lactic acid.
Sviðasulta, head cheese or brawn made from svið, sometimes cured in lactic acid.
Lifrarpylsa (liver sausage), a pudding made from liver and suet of sheep kneaded with rye flour and oats.
Blóðmör (blood-suet; also known as slátur lit. 'slaughter'), a type of blood pudding made from lamb's blood and suet kneaded with rye flour and oats.
Harðfiskur, wind-dried fish (often cod, haddock or seawolf), served with butter.
Rúgbrauð (rye bread), traditional Icelandic rye bread.
Hangikjöt, (hung meat), smoked and boiled lamb or mutton, sometimes also eaten raw.
Lundabaggi, sheep's loins wrapped in the meat from the sides, pressed and cured in lactic acid.
Selshreifar, seal's flippers cured in lactic acid.
Súr Hvalur, whale blubber pickled in sour milk.
Rófustappa, mashed turnips
stick to good old fashioned polish food - pierogi