Zhongshan in the context of Romanization of Cantonese

Zhuhai is a resort city located on the west bank of the Pearl River estuary, near Macau on the central coast of southern Guangdong, China, on the southeastern edge of the Pearl River Delta. Its name literally means "pearl sea", which originates from the city's location at the mouth of the Pearl River meeting the South China Sea. Zhuhai borders Jiangmen to the west, Zhongshan to the north and Macau to the southeast, and has a bridge connecting to Hong Kong.

Zhuhai was one of the original four Special Economic Zones established in 1980, as well as one of China's premier tourist destinations, being called the Chinese Riviera. While the city is located in the traditionally Cantonese-speaking province of Guangdong, a significant portion of the population is now made up of Mandarin-speaking economic migrants originally from inland provinces.

The Guangdong–Hong Kong–Macao Greater Bay Area, commonly referred to as the Greater Bay Area (GBA), is a megalopolis, consisting of nine cities and two special administrative regions in South China. It is envisioned by Chinese government planners as an integrated economic area aimed at taking a leading role globally by 2035.

It is the largest and most populated urban area in the world. The GBA—with a total population of approximately 86 million people—includes nine mega cities of Guangdong province: Guangzhou, Shenzhen, Zhuhai, Foshan, Dongguan, Zhongshan, Jiangmen, Huizhou, and Zhaoqing as well as two special administrative regions, Hong Kong, and Macao (Macau). Hong Kong, Guangzhou, and Shenzhen have been described among the world's 50 "superstar cities". Surrounding the Pearl River Delta with a total area of 56,000 km (comparable in size to Croatia), it is the largest and the richest economic region in South China.

The Pearl River Delta Economic Zone (simplified Chinese: 珠江三角洲经济区; traditional Chinese: 珠江三角洲經濟區; pinyin: Zhūjiāng Sānjiǎozhōu Jīngjìqū) is a special economic zone on the southeastern coast of China. Located in the Pearl River Delta, it consists of the Chinese cities of Guangzhou, Shenzhen, Zhuhai, Foshan, Dongguan, Zhongshan, Jiangmen, and parts of Huizhou and Zhaoqing. Adjacent Hong Kong and Macau are not part of the economic zone.

The 2008-20 plan, released by China's National Development and Reform Commission, was supposed to be designed to boost the pan-Pearl River Delta as a "center of advanced manufacturing and modern service industries", and as a "center for international shipping, logistics, trade, conferences and exhibitions and tourism". Goals included the development of two to three new cities in the Guangdong-Hong Kong-Macao Greater Bay Area, the development of 10 new multinational firms, and expansion of road, rail, seaport and airport capacities by 2020. They included construction of the 31-mile (50 km) Hong Kong–Zhuhai–Macau Bridge linking Hong Kong, Macau, and the Pearl River Delta. The construction of 1,864 miles (3,000 km) of highways in the region was to be completed by 2012, and rail expansions of 683 miles (1,099 km) by 2012 and 1,367 miles (2,200 km) by 2020.

Zhongshan Min (simplified Chinese: 中山闽语; traditional Chinese: 中山閩語), known as Cunhua (村话; 村話) by its speakers, are three Min Chinese dialect islands in the Zhongshan region of the southern Chinese province of Guangdong. The Zhongshan Min people settled in the region from Fujian Province as early as the Northern Song dynasty period (1023–1031).The three dialects are:

• Longdu dialect, spoken mainly in Shaxi and Dachong in the west of the prefecture,
• Nanlang dialect or Dongxiang dialect, spoken mainly in Nanlang and Zhangjiabian in the east, and
• Sanxiang dialect, spoken in Sanxiang in the south.

According to Nicholas Bodman, the Longdu and Nanlang dialects belong to the Eastern Min group, while the Sanxiang dialect belongs to Southern Min. All three have been heavily influenced by the Shiqi dialect, the local variety of Yue Chinese.

Guangzhou–Zhuhai intercity railway or Guangzhu intercity railway (simplified Chinese: 广珠城际铁路; traditional Chinese: 廣珠城際鐵路; pinyin: guǎngzhū chéngjì tiělù) is a dedicated, grade-separated regional railway linking Guangzhou South railway station in Panyu, Guangzhou, Jiangmen railway station in Xinhui, Jiangmen, and Zhuhai Jinwan Airport in Zhuhai, via Shunde, Zhongshan and Jiangmen, in Guangdong province. It is the first line completed in the Pearl River Delta Metropolitan Region intercity railway network. It is operated by China Railway Guangzhou Group.