This has all the intensity of a Port - rich, spicy, black fruit flavours, hints of muscovado sugar - without the weight and substantial alcohol.If you like visiting vineyards then the Douro is a must. The best way to travel up there is to take the train from Oporto. After the first few stops, at which most of your fellow passengers get out, you are left wending your way slowly upriver as the track parallels the river Douro up to the Spanish border four hours away. The valley gets steeper and the wild slopes are dotted with neat patches of vines. Just past the town of Pinhao is a small halt, which serves no other than the farm of Quinta do Crasto. This Quinta, or farm, is situated on a hill dramatically set overlooking the river some 300 meters below. The estate derives its name from the Roman Crastum meaning fortified hilltop. The Roquette family do make Port but principally make great red wines from Port grapes that deliver exciting new flavours.