The world's finest wines, sweeping vineyards, and fine food couple with a river valley dotted with castles. Rudy Maxa samples the best Bordeaux, then cruises the lovely Dordogne and Lot rivers, with stops at chateaux, ancient watermills, and perched villages. Cooking classes and an underground adventure, to see pre-historic cave paintings, round out the trip. Tips on wine tasting and walking paths are also given.