This is a bit of a shaggy-dog story, but it has a travel-related point at the end.
I am interested in military history. Lately I've been reading about the campaign to clear the Scheldt Estuary in World War II. After the Allies landed in Normandy, they had trouble securing ports to bring in supplies. They captured Cherbourg, a small port, and they built artificial harbors in Normandy. However, the Germans destroyed the facilities in Boulonge and Calais before retreating. In early September, the Allies captured the great port of Antwerp relatively intact. However, it couldn't be used for shipping until the Scheldt, which leads from the sea to the port, was cleared of German shore batteries and minefields. After the failure of Operation Market Garden ("A Bridge Too Far") showed the Allies that the war was not yet over, General Eisenhower directed Field Marshal Montgomery to get serious about clearing the Scheldt.
The task fell to the Canadian 1st Army, which included Canadian, British, and Polish troops. It was a fairly miserable campaign, in early winter with much of the terrain deliberately flooded to impede their progress. The final stage of the campaign was a landing on Walcheren Island, with a major battle at Vlissingen and some fighting near Middelburg.
As I read about this, parts of it seemed strangely familiar. Then it finally clicked with me. I got out my files from our first river cruise in 2006, a Viking "Tulips and Windmills" trip. There it was: I had been on Walcheren Island. The ship had docked at Vlissingen. The activities had been a walking tour of the medieval charms of Middelburg and then an excursion to look at the post-war engineering wonders of the storm surge barriers. Although I knew something of the Scheldt campaign even then, I never realized where I was.
So here's the travel point: If you go on a group tour, you let someone else decide your agenda and activities. That's not always a bad thing, but you need to keep aware of where you're going and what else is around you, just in case there is something special you would rather experience. I was inexperienced at the time, and the waterways of the low countries are hard to keep track of. I think I would do better today. Still, I'm kicking myself for a lost opportunity.
--Dav