This closure was not something that could be achieved overnight. Although it does not concern the entire estate, 500 hectares of forest and heathland had to be closed off on Friday. Steward Wilbert Nijlant, manager of the Den Treek estate, was busy yesterday. “No entry signs have to be hung everywhere, campsites informed, holiday homes cancelled. It is not just one email and everything is arranged. We are working at full speed, but it is a major logistical operation.”