Southern German waddensee between Neuharlingersiel 'beach' in the foreground and Wangerooge island at the horizon.

In the middle of the picture runs the longitudinal dyke ('jetty') to keep the waterway free of mud.

 

Object mirroring on the wadden sea ground close to the horizon. A similar feeling like the Fata Morgana effect which normally mirrors objects on earth against the atmosphere.

Done