looks like a great location for this sort of thing - where is it?

In Lulå, northern part of Sweden.

sorry... should have read "Luleå"

Looks tilted? ;-)

That's cause it is... ;) I tilted the camera a bit to lessen the optical distortion of the roof. I don't really like to work with extremely short lenses, but I couldn't find any position further back.

fan va shysst!

Ah! It's where the iron & steel comes from. A long way up in both senses.

That looks like an enormous amount of fun.

Bet the water's freeeeezing....