Naka-Karuizawa Station
Lines. Naka-Karuizawa Station is served by the Shinano Railway Line and is 4.0 kilometers from the starting point of the line at Karuizawa Station. Station layout. The station consists of two opposed side platforms serving two tracks, with an elevated station building. The station is staffed. History. The station opened on 15 July 1910 as . It was renamed Naka-Kuruizawa on 10 April 1956. Passenger statistics. In fiscal 2011, the station was used by an average of 933 passengers daily.