The starting point of Longjing River Drift is at Yan Shuitang, in the middle reaches of Longjing River. Here, the water surface is calm like a mirror, the azure water is crystal clear to the bottom, and the swimming fish and the inverted reflection of green mountains can be clearly seen. After changing into red life jackets, sitting on the light red rubber boats, playing with water casually, in such an environment, the mood is extremely comfortable. Before setting off, the tour guide informed: the current ahead is rapid, the riverbed is narrow, and there are many dangerous shoals... which immediately made people's hearts surge, creating a tense atmosphere akin to the eve of battle. The tour guide also informed: both hands must tightly grip the handles on the sides of the small boat, arms should not extend beyond the edges of the rubber boat, sit upright in the center, maintain balance, stay calm, cooperate with each other, and push forward bravely...