Emperor Qianlong was in 175 1 (Qianlong 16 years), 1757 (Qianlong 22 years), 1762 (Qianlong 27 years), 1765 (Qianlong 27 years).

It's hard to get a ticket every time. Generally, I went to jiangning house (now Nanjing), Suzhou, Hangzhou and Yangzhou, and finally I went to Haining, Zhejiang for the last four times. Emperor Kangxi, the grandfather of Emperor Qianlong, also visited Jiangnan six times during his reign. The purpose of Emperor Qianlong's six trips to the south of the Yangtze River generally includes the following aspects: appreciating the river, patrolling the river, inspecting the people and officials, appreciating the gentry, cultivating the gentry, and marching toward the mausoleum.

Extended data:

The fundamental reason for six trips to the south of the Yangtze River is:

The economic and cultural conditions in Jiangsu and Zhejiang provinces occupy a very important position in the whole country. The amount of silver grain donated by the two provinces reached 20.8% and 30% of the total amount of silver grain, salt silver accounted for 68% of the total amount of salt silver in the country, and tariffs accounted for half of the total tax revenue in the country. Jiangsu and Zhejiang are the most culturally developed areas in China, with many talents and scholars, ten times more than other provinces.

On the other hand, Jiangsu and Zhejiang were the center of the activities of adherents in the late Ming Dynasty, and anti-Qing thoughts and words and deeds continued, resulting in many literary inquisitions. Without the huge financial revenue in Jiangsu and Zhejiang provinces and the support of gentry, the rule of the Qing Dynasty would be difficult to consolidate. Firmly control Jiangsu and Zhejiang provinces and make full use of their financial, human and material resources to develop their "prosperous times".

References:

Baidu encyclopedia-ganlongdi southern tour