A fantastic trip. The food and wine was excellent and the experience of watching the beautiful scenery glide past as we relaxed onboard will remain with us for a long time.We were celebrating our Ruby wedding anniversary and the crew went out of their way to make it special for us. The trips were interesting and the guides friendly and knowledgeable. We are fit but the hilly nature of the terrain could make some of the tours difficult for those with mobility issues. The Coa Valley Museum was absolutely superb with information imparted to us in an entertaining fashion. This is right up there with our best holiday ever,the experience being enriched by conversations with fellow holidaymakers from other nations, and by the fantastic commitment of Emerald staff at all times. Notwithstanding the superb Douro Valley backdrop,such wonderful Portuguese scenery that takes some beating,the organisation by Emerald as a company,and the care afforded to us as travellers by wonderful onboard staff elevated the whole holiday experience to a truly outstanding level.