Kusatsu Onsen is one of Japan's most famous hot spring resorts and is blessed with large volumes of high quality hot spring water said to cure every illness but lovesickness.
Well known as a hot spring resort for many centuries, Kusatsu's fame was further boasted by German doctor Erwin von Baelz, who served at the imperial court in the late 1800s and recommended Kusatsu for its water's health benefits.
