noun
going downstream by boat; river descent
Refers to the activity of traveling down a river by boat, often for sightseeing or sport.
夏休みに家族で川下りを楽しんだ。
We enjoyed a river descent as a family during summer vacation.
この地域では川下りが人気の観光アクティビティだ。
In this region, going downstream by boat is a popular tourist activity.
川上り means going upstream by boat, the opposite direction.
Compound of 川 (kawa, 'river') and 下り (kudari, 'descent').