Wanning is called Wanning City and belongs to Hainan Province. According to the "Wanning Overview" of the Wanning Municipal People's Government, Wanning City is located on the southeastern coast of Hainan Island. It is a prefecture-level city in Hainan Province and is directly affiliated with Hainan Province. The land area is 1883.5 square kilometers, the sea area is 2550.1 square kilometers, and the coastline is 109 kilometers long. It currently governs 12 towns (including 5 newly established villages after the agricultural reclamation reform), 1 state-owned forest farm, 1 overseas Chinese tourism economic zone, and 207 administrative villages (communities). The city's total population is approximately 640,000. Wanning is the hometown of longevity in the world. The average life expectancy of the city's population is more than 5 years higher than the national average. There are 137 elderly people over 100 years old in the city, accounting for 20,000 of the total population. In addition, Wanning also enjoys the reputation of the world's surfing resort, the hometown of Chinese betel nuts, the hometown of Chinese calligraphy, and the hometown of Chinese martial arts.