How to get to Oze

There are two main entrances to Oze park. One from the Gunma pref. side and the other from the Fukushima pref. side. From Tokyo, the Gunma side is closer. The closest station to Oze park is Numata station on the JR Joetsu line. You can get there via the JR Takasaki line, Takasaki station. From Numata station, you need to take the bus for maybe 95 min. The whole trip takes about 4.5 - 5 hours.

There’s also a direct highway bus from late May to October which takes about 4 hours. http://global.kan-etsu.net/en/express/oze.html