Qingdao is located in the southeast coast of Shandong Peninsula, east of Jiaodong Peninsula, bordering the Yellow Sea in the east and south, facing the Korean Peninsula across the sea, and at the forefront of the China-Japan-Korea Free Trade Area [4]. Yantai in the northeast, Weifang in the west and Rizhao in the southwest [5]. Qingdao was established by the Qing government in 189 1 because of its superior geographical position, and Germany leased the port and railway in 1897. Qingdao is prosperous because of "one port, one road". With an international seaport and a regional hub airport, it is an important hub city to implement the Maritime Silk Road and realize the national "Belt and Road" strategy [6].

Qingdao is the first batch of coastal open cities in China, a coastal city in China, a national historical and cultural city, a national civilized city, a national sanitary city, a national garden city and a national forest city, and it is also the happiest city in China. As the world beer city and sailing capital, Qingdao is the leading city in the planning core area of Shandong Peninsula Blue Economic Zone approved by the State Council. There is a national new district (Qingdao West Coast New District), and the total GDP ranks third after Tianjin Binhai New Area and Shanghai Pudong New Area.

Qingdao has a maritime monsoon climate in the north temperate zone, and its famous scenic spots include Laoshan, Zhanqiao, May 4th Square, Badaguan, Olympic Sailing Center, Treasure Beach and Zhushan. International Beer Festival, International Ocean Festival and International Piano and Violin Competition are held every year. Qingdao is a famous historical and cultural city [7], and a large number of historical celebrities, including Lao She, Wen Yiduo, Hong Shen and Shen Congwen, have given lectures in Qingdao. [8][9][ 10] There are Shandong University, China Ocean University and China Youshi University in Qingdao [1/.

There are 224 rivers in Qingdao, all of which are rain sources in the monsoon region, and most of them are small rivers that enter the sea independently. There are 33 large rivers with a drainage area of 100 square kilometers, which are divided into three major water systems: Dagu River, Beijiaolai River and coastal area.

Qingdao is a national historical and cultural city, a key city for historical and cultural protection, and the first batch of excellent tourist cities in China. There are 34 national key cultural relics protection units. National scenic spots include Laoshan Scenic Area and Qingdao Seaside Scenic Area. Among nearly 300 outstanding historical buildings in Shandong Province, Qingdao accounts for 13 1. There are 85 former residences of key celebrities in Qingdao Historical Protection Area, of which 26 have been listed in the protection catalogue. 1 National Nature Reserve: Shilin, Mashan and Jimo. [28]

Qingdao Observatory, the first astronomical observation room built by China people, was built in 1898. It is one of the three major observatories in the Far East.

The first sailing club in China-Qingdao Euro-American Sailing Club was established in 1922 [77].