Cool. I couldn't find the Cave Spring CSV either. It's the Riesling that comes from the grapes in the best block in the vineyard which also has the oldest vines. The terroir really shines through. It's priced in the $30 range/bottle. Really, really good. In general Riesling does particularly well in Ontario. I did find a bottle of their Riesling at the LCBO from their other Riesling blocks but didn't buy it. It's still very good though. It runs about $15-$17 bucks/bottle.
Well, you will find out for yourself anyways soon