Lyric discussion by raving 

The Vikings were mostly from Norway and Denmark, very few if any from Finland. But I'm not going to talk about that. This might either be about when the Danish invaded the English shores or when Leifur Eiríksson sailed from Iceland to America, since this song is written after Led Zeppelin played in Iceland, I'm guessing it's the second:P

"From the midnight sun where the hot springs blow."

It's bright 24/7 in Iceland in the summer, so the midnight sun might be referring to that and even though there are hot springs in other places in the world, I do believe that they only "blow" in Iceland, because of the subterranean heat:P

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