I am preferably looking for a spot easily reachable from Berlin but am curious about the whole area.
I am mostly looking for a weekend trip. Can be off site, airbnb, hotel or whatnot.
I think that the islands of Usedom or Ruegen would be a nice place to be. Ahlbeck (near the Polish border) on the Island of Usedom or Binz, Sellin or Sassnitz on the Island of Ruegen are worth seeing.