Bad Salzig is a small town in Rhineland-Palatinate, Germany, on the west bank of the Rhine. It is part of the municipality of Boppard. It is near the city of Koblenz and the Lorelei. It is a spa town, with a spring which dispenses slightly salty water. On the other side of the Rhine you can see the Marksburg, the only surviving medieval castle on that part of the Rhine. It is linked to other towns by a railway which runs form the town's railway station.