Courtesy of Viking Cruises
The 106-passenger Viking Osfrid — which looks identical to sister ship Viking Torgil, shown here — offers scenic river cruises up and down Portugal's Douro Valley.
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Courtesy of Viking Cruises
The 106-passenger Viking Osfrid — which looks identical to sister ship Viking Torgil, shown here — offers scenic river cruises up and down Portugal's Douro Valley.
