大井川鐵道
The is a railway line of the Ōigawa Railway. It runs from Senzu Station in Kawanehon, Shizuoka, the end station of the Ōigawa Main Line, and terminates at Ikawa Station in Aoi-ku, Shizuoka. The line has 61 tunnels and 51 bridges along its 25.5 kilometer length and includes the only rack-and-pinion railway section currently operating in Japan.