I visited Echigo-yuzawa, Niigata prefecture to see mountain flowers. I used Joetsu Shinkansen (Bullet Train) from Tokyo to Echigo-yuzawa. It cost 6,870 yen ($67.35 €49.78) including a peak season charge (200 yen).
Following image: Joetsu Shinkansen at Tokyo
Landscape of Echigo-Yuzawa
Mountain flower
Train ticket