In reply to davidbeynon:
No idea really - I've only ice climbed in places that don't use WI grades, or where the climbing style is not really suited for WI grades, so can't say whether the routes we did there are really WI2 or 3 or 4. I suspect the lack of traffic and size (width as much as length) of the routes up there makes them fairly unique. As the guide says, you can see most of them from the road, so you sort of have a fair idea of what you are letting yourself in for before you slog up to the falls. I'm normally pretty unconvinced by the hippy "it's not about the grade, man!" sort of stuff - it often is! We all want to challenge ourselves and progress. But in Lyngen there is so much else to think about, whether the route deserves WI3 or 4 really doesn't seem so important!