ah ah ah...this is total bullshit? I have no clue. It rains a lot in england and grapes love that.
Anyway, we have Inniskillin for the best ice wine tradition of canadian decsent I know.
Personnally, Grenier, I never buy icewine anymore. Nope: crazy priced though mighty good. I buy St germain, a french elderberry liquor that costs a fourth of ice wine inniskillin price and is better.