The North and North Central regions have a humid subtropical climate with 4 seasons: Spring, Summer, Autumn, and Winter. The Central and South Central regions have a tropical monsoon climate, the extreme South Central and Southern regions have tropical savanna characteristics. At the same time, it is directly influenced by the trade monsoon climate, which often blows in low latitudes. The South often has a tropical savanna climate, hot and humid with two seasons: dry season and rainy season (from April-May to October-November). Every year, the cold and humid winter typical of the North contrasts with the warm atmosphere of Tet and spring in the South.
Festivals are one of the special features in Vietnamese culture. The diversity of ethnic religions makes Vietnam one of the countries with many festivals. Festivals are held to commemorate cultural events. Community spirit is the essence of every festival. There are two parts to festivals: ceremony and festival. The ceremony is to express respect for divinity and people's dreams of health, wealth, luck and happiness for themselves and their loved ones. Festivals are unique features of culture, community, religion, etc. The two biggest traditional festivals are Lunar New Year and Hung King's Death Anniversary. During Lunar New Year, each region has other festivals to celebrate such as Lim Festival in Bac Ninh province, Giong Festival in Soc Son, Perfume Pagoda Festival in Hanoi. Hung King's death anniversary is held every year from the 8th to the 11th of the third lunar month. It is organized so that everyone remembers their roots. With many landscapes recognized by UNESCO as world natural heritage and a wealth of unique regional cultural spaces, Vietnam is a legendary land and also a storehouse of attractive material for filmmakers to exploit. long lasting waterfall.
Vietnam's terrain has about 40% mountains and forests, 40% hills and coverage of about 75% of the country's area. There are mountain ranges and plateaus such as Hoang Lien Son range, Son La plateau in the north, Bach Ma range and plateaus following the Truong Son range in the south. Network of rivers and lakes in the delta or mountainous areas of the North and Central Highlands. The delta accounts for about 1/4 of the area, including deltas such as the Red River Delta, Mekong River Delta and the Central Coastal Plains, which are densely populated areas. Cultivated land accounts for 17% of Vietnam's total land area.
The Vietnam National Gene Bank preserves 12,300 varieties of 115 species. The Vietnamese government spent US$497 million to maintain biodiversity in 2004 and has established 126 protected areas including 28 national parks. Vietnam has 2 world natural heritage sites: Ha Long Bay and Phong Nha - Ke Bang National Park and 6 biosphere reserves including Can Gio, Cat Tien, Cat Ba, Kien Giang, and River Delta mangrove forests. Hong and Tay Nghe An.