​Board National Geographic Orion in the center of Copenhagen. As you sail toward the North Sea, take in panoramic views of the cityscape.

Cruise up the river Trave to the beautiful medieval city of Lübeck. Once the Queen City of the Hanseatic League, Lübeck boasts beautiful brick architecture, much of which was rebuilt after WWII. Taste locally produced marzipan, and visit the incredible Holsten Gate and Hospital of the Holy Spirit—two of the many fascinating buildings to grace this lovely, picturesque town.

Overnight and into the morning, transit the Kiel Canal, a 61-mile waterway connecting the North Sea with the Baltic. During and after breakfast, take in the beautiful views of the Schleswig-Holstein region from the ship until we reach the Brunsbüttel Lock and exit out into the North Sea to sail along the coast of mainland Europe. Unwind, head to the spa, browse the library, and hear talks from our staff.

Cluttered with bicycles, bursting with flowers, and carved by canals, Amsterdam is a vibrant city with an arts scene that has flourished since the Middle Ages. Take in the unique character of the canal-lined streets by boat or on foot, and experience the spectacular Rijksmuseum, recently reopened after a mammoth, nine-year renovation. On a guided tour, get an insider’s view of the world’s largest collection of Dutch masters with works by Vermeer, Rembrandt, and more.

Bruges is a UNESCO World Heritage site filled with Gothic architecture and serene waterways. Walk through the bustling and colorful Markt Square, and listen as the bells of the medieval bell tower toll the hour. After a walking excursion, board small boats and glide down swan-dotted canals to experience the gem-like old town from another perspective. The port city of Antwerp dates from the Middle Ages. Stroll the centuries-old diamond district; visit the Rubens House to view works by Baroque master Peter Paul Rubens; and admire the Renaissance architecture in Grote Markt.

Turn your focus toward one of the most important historical events of the 20th century as you retrace the events of D-Day with a historian. Walk in the footsteps of the Allied troops at Omaha Beach, and pay your respects at the American Cemetery. Visit the famous Pegasus Bridge across the Caen Canal, where the British 6th Airborne Division glided in to land at the very start of the Allied invasion. See the remains of Mulberry Harbor, created from partially sunken blockships to provide a safe point of entry for supplies and equipment after the initial invasion began.

Sail past the Cliffs of Dover, a beacon to many WWII pilots returning home from battle on the continent. Walk the wartime tunnels deep beneath Dover Castle and immerse yourself in the drama of the Dunkirk evacuation – “Operation Dynamo.” Visit Ramsgate, once the embarkation point for the 1940 evacuation, where 4,200 ships left the harbor to rescue men stranded on Dunkirk’s beaches. Overnight, navigate up the River Thames, toward London.

Disembark in London and transfer to Heathrow Airport for flights home.