Benefit from pick-up at your hotel, and then embark on a full-day sightseeing tour of Porto by land and water. Located at the mouth of the Douro River, the capital of the Northern Region of Portugal is home to an exceptional architectural heritage and was declared a UNESCO World Heritage Site in 1996. Marvel at the monuments and historical buildings, such as the imposing cathedral and Tower of Clerics. Go to the stunning square of Cais da Ribeira for breathtaking views of the pastel-colored houses of the riverfront promenade. Look across the river to the opposite bank, where the city of Vila Nova de Gaia offers superb views of the legendary port wine cellars. Taste different varieties of the wine in one of the cellars where it is blended and aged.  Then, cruise aboard one of the traditional flat-bottomed rabelo boats, and journey past 6 bridges on board a mode of transport that used to carry wine from the Douro Valley. Learn more about the historic bridges that connect Porto and its twin city of Vila Nova de Gaia.