The railway gun shed done, I rode along the coast from Dover to Calais, to have lunch in Cap Gris Nez. Clearly my picture was taken by Giles:


Lunch done, it was off along the D roads to see the former V3 supper cannon site.
The parking area for cars (on large gravel) is well set out, including a solid area (no gravel) dedicated to motorbikes:
Of all the huge V-weapon sites, this is arguably the maddest. Having built a smaller test site in Germany, the Germans knew that the cannon would not work, but they went ahead and tried to build it anyway. The project was massive, all be it having to be scaled down from the original outlandish plans. What was left was a huge angled shaft, 130 metres long, hacked and tunnelled into the chalk, to house a planned five tubes or gun barrels. The huge steel plate which was to cover the five, closely spaced barrels, lies at the entrance. You can see the five holes where the barrels exited:
The tunnels (you pay a modest fee to enter) are about 30 metres down from what would have been the exit of the five barrels. Beneath you, is 100 metres of the angled shaft. There are good boards to read explaining the utter madness of what went on, not least that this was but one of tge gun sites that the Germans planned on constructing, even though they knew it wouldn’t work. Even if it had worked, the quantity of munitions it would deliver, would have been paltry compared with the massive bomber fleets available to the Allies.
The gun was never finished. Several attempts were made to bomb the site which, despite doing considerable damage at the surface, did little or nothing to destroy the 130 metres of shaft. This was eventually hit by Tall Boy bombs and put out of action completely, but not before the Americans had twice tried to use guided bombs to hit it. This latter plan (equally mad) involved filling aging and battled damaged Flying Fortress bombers with high explosives, have them piloted by two pilots to take off only. Once airborne, the pilots would parachute out, the aircraft being flown by remote control to their target. It was a complete failure!
The site is definitely worth visiting and takes about an hour, if you read the well displayed information boards. The boards, whilst giving the site’s purpose and construction, also tell the visitor about the bats which overwinter in the tunnels (the site closes over tge period, to leave the bats in peace) and the geology of tge chalk into which the tunnels and shafts are carved. Interesting, to me at least, is they they can tell the multiple thousands of years over which the billions of tiny creatures lived (their shells form the metres thick chalk, the same as White Cliffs at Dover) and the global temperatures at the time. In essence ,the world and its seas were warm when the tiny creatures died and sank to firm the chalk. It then got cooler and a layer of what became flint covered them. It then warmed and the chalk restarts, then cools, the flint layer reappearing. You can see tge layers in the tunnels:
The galleries end with a small exhibition, telling the story of the Canadian army, which landed on D-Day and fought along the coast, all the way to Holland, to liberate the Channel ports. Their struggles are generally overlooked. I plan on visiting their cemetery (I have been past it lots of times, but never stopped) and have a read of the two volume history of their endeavours.
From the V3 site, it was D roads back to St Omer.
A simple but good day out.