From Tokyo, take the Hokuriku Shinkansen to Joetsu-Myoko Station, which takes approximately 2 hours. From there, you can take a taxi for about 10 minutes to reach the park, or transfer to a local train to Takada Station on the JR Shinetsu Main Line or Myoko Haneuma Line, followed by a 15-minute walk to the park. Alternatively, local buses run from both stations to stops near the park entrance.