There are no mountains on Huangshan Mountain.

3. When the Five Mountains return, don't look at the mountains; When Huangshan comes back, they don't look at the mountain; The gentleman faces the blue sea and looks up at the sky.

4. Xu Xiake, whose real name is Hongzu, whose real name is Xiake, Han nationality, is from Jiangyin, Jiangsu. Geographer, explorer, traveler and writer in the late Ming Dynasty.

5. Xu Xiake's travel notes of more than 2.6 million words written after 30 years of investigation have opened up a new direction for geographical system to observe and describe nature. Xu Xiake's Travels is a geographical masterpiece that systematically investigates the landform and geology of the motherland, and has far-reaching influence at home and abroad.