A complex of World War II-era German military bunkers located in the Heist Willemspark area of Knokke-Heist municipality, near the Belgian-Dutch border. The structures were part of the German Atlantic Wall coastal defenses in occupied Belgium and were rediscovered during routine park maintenance work focused on invasive plant removal. Archaeological investigation has confirmed their wartime use, with interior spaces still containing original fixtures and structural elements from the period.
The bunkers are situated within a public park, representing a concealed legacy of the German occupation (1940-1944). Their discovery provides tangible evidence of the extensive fortification efforts along the North Sea coast. The site contributes to the historical landscape of the Westhoek region, which saw significant military construction during the war.