Hi Andy,
When I am looking for any location I usually begin with Wikipedia, which then gives a Google Maps location and link. This works at least 99% of the time for me. A straightforward Google search after that if Wikipedia fails. The nearest Google took me was to Cuxhaven, but I could not find it near there on hardcopy or digital maps. Of course, Ed West's links showed it was across the bay, near Brunsbuttel.
Regards,
Martin.
https://martinaviationpages.com/