We have a bus stop directly in front of the campsite on the beach.

The bus stop is called Niendorf/Abzweig Wiek and line 240 runs here in the direction of Wismar and Boltenhagen.
More information about the bus stop map from the service provider Nahbus:

For Deutsche Bahn, the stop is called: Groß Walmstorf Niendorf/Wiek Abzw. bei Hohenkirchen.