Between the green mountains and green waters in southeast Guizhou, there is an ancient town forgotten by time – Xiasi Ancient Town. Xiasi Ancient Town is only 8.9 kilometers away from Kaili. Walking in the Xiasi, as if passing through time and space, looking at the ancient pier, as if it was talking about the bustling past of the tea horse ancient road, approaching the tea house, vaguely looking at the past merchants talking about business. Goods are scattered, merchants are gathered, and they are very lively. The architecture of the ancient town can be called an architectural history textbook: Fengyu Bridge, Drum Tower, Lingnan's riding building, red brick raft, Huizhou's white wall and tile, Jiangnan's small bridge flowing water, here harmonious coexistence, showing that here has been closely related to the outside world. In the Imperial Wood Museum, there are treasures from the Ming and Qing Dynasties, and in Mingyang Academy, echoing the afterglow of the sages. The sour taste of the sour soup fish is a unique memory left by Xia Si, and the hometown of Xia Si Dog, there is also a moving story between this loyal dog and the official business. Xiasi Ancient Town, integrating natural scenery, humanistic heritage and architectural art, is not as noisy as popular attractions, but with its unique charm, waiting for travelers who know to appreciate. Here, time seems to stop, let us find a long-lost tranquility and poetry between the mountains and rivers.