Bad Schwartau is a city located in the district of Ostholstein within the German state of Schleswig-Holstein. It serves as the largest city in its district and is situated approximately 5 km north of the Hanseatic City of Lübeck.
The city is positioned on the river Trave and the Schwartau creek, located about 13 km from the Baltic Sea. Bad Schwartau is recognized as a spa-city, primarily known for its iodide saline waters.