Chengde is a city full of vitality and vitality. A landscape garden-style city with "blue sky, green ground, green mountains, beautiful water, refreshing air, smooth roads, clean city, and harmony" is gradually taking off its shy veil and beautifully displaying it in front of the world. When it comes to Chengde’s tourism resources, Chengde people proudly summarize them as the “Royal Three Crowns” and the “Three Wonders of the Purple Sea”. The "Royal Three Crowns" refer to the world's largest existing royal garden - the Summer Resort, the world's largest royal temple complex - the Outer Eight Temples, and the world's largest royal hunting garden - Mulan Paddock. The "Three Wonders of Zisa" refer to the Jinshanling Great Wall where the essence of the Zisa Great Wall is located, Zisa Xiongfeng - Wuling Mountain, the main peak of Yanshan Mountain, known as the "Treasure House of Natural Plants in North China", and Zisa Guilin - winning the title of "Beyond the Great Wall" for its beautiful scenery. Panlong Lake is known as "Little Lijiang River".