Sakazuki River flows into the Sea of Japan in the west of Hokkaido Prefecture. This river, which collects snowmelt from the Shakotan Peninsula, is known among canoeists as a river where they can enjoy some wild river rapids. In this episode, French and Japanese canoeists fully enjoy adventurous kayaking. Slope-like fast-flowing stream and a series of waterfalls await them as they navigate the rapids. The two challenge these difficult courses by using their skills. Later, we also show you footage of freshwater fish that sustain life in this river, flowing into the Sea of Japan.