What is the largest existing ancient royal garden in China?

The largest existing ancient royal garden in China is chengde mountain resort.

Chengde mountain resort is a world cultural heritage, a national AAAAA tourist attraction, a national key cultural relic protection unit and one of the four famous gardens in China.

Chengde mountain resort, also known as "Chengde Palace" or "Rehe Palace", is located in a narrow valley along the west bank of Wulie River in the north of Chengde City, Hebei Province. It was the place where the emperors of the Qing Dynasty spent the summer and handled government affairs.

The summer resort was founded in 1703, and it took 89 years to complete after Kangxi, Yongzheng and Qianlong in Qing Dynasty. The summer resort takes the quaint and elegant mountain village as its style, takes the true colors of natural landscapes and absorbs the scenery in the north of the Yangtze River, making it the largest existing ancient palace in China.

The summer resort is divided into four parts: palace area, lake area, plain area and mountain area. The whole resort is watery in the southeast and mountainous in the northwest, which is the epitome of China's natural landforms, a brilliant milestone in the history of China gardens, a masterpiece of China's classical garden art and the highest model of China's classical gardens.