Rambling vineyards and charming native farms cling to the steep sides of the Douro River Valley, creating an incomparable backdrop to one of Europe's most unspoiled regions and Port country - the world's oldest demarcated wine region. Sail roundtrip from Porto, the beautiful "City of Bridges" visit Reguna, the 'capital' of the Douro Valley, and marvel at Salamanca, the UNESCO-designated "Golden City." Taste wines from historic winderies and soak up the genuine beauty of one of Europe's most unadulterated landscapes.