Tournesol wine estate is located in the Coombsville AVA of the Napa Valley. Bob and Anne Arns planted 15 acres of Bordeaux varietals on a gently sloping bench 300 feet above the valley floor. Tournesol vineyard practices follow principles of sustainability and organic farming, and the property is certified Napa Green. Tournesol vines enjoy perfect exposure to the sun with cool breezes from San Francisco Bay providing an ideal growing climate. The Arns strive to produce the finest estate grown Cabernet Sauvignon and Bordeaux style blends while being responsible stewards of the land.