{"id":20317,"date":"2026-01-28T11:02:37","date_gmt":"2026-01-28T10:02:37","guid":{"rendered":"https:\/\/denhelder.online\/locatie\/kroontjesbunker-fl250\/"},"modified":"2026-01-28T11:02:37","modified_gmt":"2026-01-28T10:02:37","slug":"crown-bunker-fl250","status":"publish","type":"locatie","link":"https:\/\/denhelder.online\/en\/locatie\/kroontjesbunker-fl250\/","title":{"rendered":"Crown bunker (FL250)"},"content":{"rendered":"<p>The <strong>Crown bunker (FL250)<\/strong> is a remarkable remnant from World War II. This tower-like command bunker earned its nickname from the distinctive crown shape on its roof.<\/p>\n<p><strong>Military nerve center on the coast<\/strong><\/p>\n<p>From this air defense bunker, Allied aircraft movements were plotted through a glass wall, and coordinates were relayed to the anti-aircraft guns. Information was relayed via a network of radar stations, including positions in Zandvoort and Terschelling. This created a chain of observation that could accurately track every aircraft movement.<\/p>\n<p><strong>Experience military history<\/strong><\/p>\n<p>Located in a nature reserve near Huisduinen, the bunker is only open during special events such as <strong>Bunker Day<\/strong> and <strong>Open Monument Day<\/strong>. In the future, the Kroontjesbunker will be restored to its original state as much as possible.<\/p>\n<p><strong>Please note: nature reserve<\/strong><\/p>\n<p>The bunker is located in a protected dune area. Stay on the marked trails and bring a flashlight to explore the interior.<\/p>","protected":false},"excerpt":{"rendered":"<p>War relic with a view: coordination bunker from WWII in a nature reserve<\/p>","protected":false},"featured_media":0,"template":"","meta":{"footnotes":""},"categories":[6397],"tags":[6290,1087,6249,1482,6291],"doelgroep":[],"class_list":["post-20317","locatie","type-locatie","status-publish","hentry","category-bezienswaardigheden","tag-bezienswaardigheid","tag-denhelder","tag-erfgoed","tag-huisduinen","tag-monument","marker-toonopdenhelder","marker-toonopvisitkopvanholland"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.7 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Kroontjesbunker (FL250) - Den Helder Online<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/denhelder.online\/en\/location\/crown-bunker-fl250\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kroontjesbunker (FL250)\" \/>\n<meta property=\"og:description\" content=\"Oorlogsrelict met uitzicht: co\u00f6rdinatiebunker uit WOII in natuurgebied\" \/>\n<meta property=\"og:url\" content=\"https:\/\/denhelder.online\/en\/location\/crown-bunker-fl250\/\" \/>\n<meta property=\"og:site_name\" content=\"Den Helder Online\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/denhelder.online\\\/locatie\\\/kroontjesbunker-fl250\\\/\",\"url\":\"https:\\\/\\\/denhelder.online\\\/locatie\\\/kroontjesbunker-fl250\\\/\",\"name\":\"Kroontjesbunker (FL250) - 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