Viking Astrea: 21-Night Northern Europe from London (Southampton)

Dover is one of England's busiest cruise ports, sitting on the Kent coast at the narrowest point of the English Channel, just 21 miles from Calais, France. The White Cliffs of Dover, the chalky coastal escarpment visible from sea, are England's most recognized natural landmark and the first or last thing passengers see as they arrive or depart.

Bergen cruise port is Norway's largest and the main gateway to the Norwegian fjords. The city sits on the country's western coast, surrounded by seven mountains and a network of deep, narrow fjords carved out by glaciers over thousands of years.

Bergen cruise port is Norway's largest and the main gateway to the Norwegian fjords. The city sits on the country's western coast, surrounded by seven mountains and a network of deep, narrow fjords carved out by glaciers over thousands of years.

Oslo is Norway's capital, home to about 700,000 people in a city wrapped around the head of the Oslofjord with forested hills rising on every side. The city has undergone a dramatic transformation over the past two decades, with the harbor district rebuilt from industrial docks into a waterfront of museums, restaurants, and public spaces anchored by the angular white marble Opera House.