In an environment that would appear to be viticulturally inhospitable exists a flourishing industry. With most of the business centred in Ontario in the east and British Columbia in the west proximity to large bodies of water is crucial in tempering the harsh winters and damaging spring frosts. While plantings of French hybrids such as Vidal Blanc took off in the 1970s producers are now experiencing success with a range of vinifera varieties including Riesling, capable of course of making exceptional ice wines, and Chardonnay. Some warmer sites are even growing Pinot Noir and Cabernet Sauvignon in warmer vintages.