You can book Hygge-Schleswig via various portals. You can also see the availability calendar on the portals.
We prefer Airbnb because we can answer your questions directly and before you book. This is not possible with the other portals. However, you can book via all portals in the same way.
Airbnb – airbnb.de/h/hygge-schleswig
Booking com – https://www.booking.com/hotel/de/hygge-schleswig.de.html
FeWo direkt – https://www.fewo-direkt.de/ferienwohnung-ferienhaus/p5442361