On a rainy afternoon in Napa Valley, why not indulge in some wine tasting? Napa Valley is renowned for its world-class wineries, and many of them offer indoor tasting rooms where you can sample a variety of wines. Take a leisurely tour of the winery, learn about the winemaking process, and savor the flavors of the region's finest wines. It's a perfect way to spend a rainy afternoon while enjoying the cozy ambiance of a winery.