There is a complete bunker complex in the dunes of Vlieland, Stelling 12 H, which was a well-kept secret for many years. In 1951, it was buried in the sand to prevent tourists from entering the bunkers. Over the past few years, volunteers have worked hard to excavate the 'Widerstandsnest H12' bunkers again and turn them into a bunker museum. Much of it is now accessible again. De Noordwester visitor centre organises guided tours that give you an idea of what life was like in the complex during the second half of WWII.
Stelling H12 is one of three fortifications built by the German army on Vlieland as part of the Atlantic Wall and the only one still intact. A large part has been restored to its former glory in the past few years. It is certainly worth a visit.
Excursions in the fortification are already being organised.
Stelling 12H on Vlieland was constructed as part of the Atlantic Wall. Exactly when it was built is unknown. What is certain, however, is that it was put into use in 1942. Its purpose was to stop any possible landing by the Allied Forces. It consisted of multiple buildings, including 3 living quarter bunkers, a mess hall bunker and a wooden command bunker. Trenches connected the different areas.