The Taisetsu Mountain Range, located almost in the center of Hokkaido Prefecture, is home to the headwaters of the Shisorapuchi River, which is very popular among canoeists. In this episode, a married couple goes down the river flush with mountain snowmelt through fresh green forests in a canoe. At times they listen to the sounds of nature during lulls in the current, while at others they skillfully negotiate thrilling river rapids. Various features of this river let the 2 fully enjoy the great outdoors of Hokkaido. This program also introduces several species of wild birds found along the clear waters.