Once JR trains ran through Mukogawa Gorge. Now hikers who like gorgeous scenery, but not overly much exertion, cross the sleepers. Thankfully spared, for the time being, from becoming another of Japan’s many dams, this hike is nearby Takarazuka, and very easily accessed from Osaka, or Kobe if you start from JR Takedao station. There are several old train tunnels along the route, so make sure to bring torches, as they are pitch black, and treacherous underfoot without light. The best season undoubtedly is autumn, but summer is also beautiful.