夏の千曲川: 鮎釣り Chikuma River in the Summer Means Ayu Fishing August 14, 2013: 季節 Seasons 長野新幹線が上田市で千曲川を渡るところ、鮎釣りの皆様が川に入って、釣りを楽しんでいる。Where the Nagano Shinkansen bullet train crosses the Chikuma River in Ueda City.Ayu-fishing is one of the popular summer pastimes here.