Introduction to the Warbler Tree: It is located on the north bank of Chenghu Lake in the Summer Resort, east of Haopu Jianxiang and adjacent to Wanshu Garden in the north. It is the twenty-third scene in the "Thirty-six Scenes of Kangxi" and is an octagonal rolling shed-style open pavilion. Here hundreds of birds are singing and the lake is rippling, just like "a shengdi in the mountains". Qianlong also wrote a poem praising: "The mountains are deep and the birds are happy, and the trees move in early."