Rabelo boats, port wine boats on the Rio Douro, Douro River, Porto, Portugal, Europe

atmosphere atmospheric attractions attraction blue hour boats boat characteristic cities city cloudless dim douro subregion douro duero dusky dusk european europe evening atmospheres evening atmosphere evenings evening famous place historical historic illuminated illuminations illumination means of transportation mood nobody no one no people old outdoors outside place of interest porto portugal portuguese port wines port wine rabelo boats rabelo boat rivers river sights sight southern europe south europe town traditionally traditional traditions tradition transportation transporting transports transport travel & geography travel photography twilight twilight typical unesco world heritage sites unesco world heritage site waters water wooden boats wooden boat wood