Sipping the Douro (Portugal). 'The exquisite Alto Douro wine country is the oldest demarcated wine region on earth. Its steeply terraced hills, stitched together with craggy vines that have produced luscious wines for centuries, loom on both sides of the sinuous Rio Douro. Whether you get here by driving the impossibly scenic back roads, or catch a train or boat from Porto, take the time to hike, cruise and taste.' http://www.lonelyplanet.com/portugal
Found out that Viking River Cruises now offers a cruise along the Douro River in Portgual. It's always been a place I want to visit (my grandmother is from Portugal), so I'm setting my sights on getting there and doing this cruise in 2013.