Infinity pools, pond gardens, and hot springs—luxury in Japan is. Kinosaki, Japan: Journey to a town of hot springs and snow crabs Amateur conlanger. Kusatsu (草津町, Kusatsu-machi) is a town located in Gunma Prefecture, Japan. As of 1 Kusatsu is one of the most famous hot springs resorts in Japan. Tour de Kusatsu (amateur bicycle race), Yuki no kairō walking (雪の回廊ウォーキング).