Japan invested more than $ 34 million into Seven Stars train in Kyushu island . The exclusive luxury train has seven carriages for 30 guests in 14 suites . Kyushu , the most southwesterly of Japan 's main islands , is the warmest and most tropically lush . It was chosen as a location because it lies on an arc between two major ocean currents that are both warm enough to support life.
Japan invested more than $ 34 million into Seven Stars train in Kyushu island . The exclusive luxury train has seven carriages for 30 guests in 14 suites . Kyushu , the most southwesterly of Japan 's main islands , is the warmest and most tropically lush . Guests on three-night trips will sleep two nights on the train and one night at a hot springs resort .