If you love bubbly, then a trip to the Champagne region of France--about an hour-plus train ride from Paris--is worth the jaunt. But be forewarned: the climate can be lousy. I was as chilled as a glass of Blanc de Blanc while visiting one of Moet & Chandon's vineyards near Epernay in July. The generally crummy weather is considered one of the key ingredients besides the area's chalky, bone-white soil that help this region of France produce the best of bubbly.
Two days should suffice for an even-paced visit that includes the essential comforts (great food and lodging) and exciting champagne....