High Quality Content by WIKIPEDIA articles! Trischen is an uninhabited island in the Meldorf Bay, about 14 kilometres off the North Sea coast of Dithmarschen in north Germany – about 12 kilometres from the Trischendamm embankment. The island belongs to the municipality of Friedrichskoog and is only occupied from March to October by a bird warden from the Nature and Biodiversity Conservation Union or NABU. Otherwise it is out-of-bounds.