Located on the Mekong Delta, Long An is more than 50km from Ho Chi Minh city, the largest city of Viet Nam. Long An is divided into smaller areas by a complex network of rives and canals. Silt from Vam Co Dong and Vam Co Tay rives has raised the level of the field of Long An. and it maked a good condition for agriculture. Topographically, it is quite flat except some hills and mounds on the north. The western area belongs to the Plain of Reeds.

 Long An has tropical monsoon climate. The rain season lasts between May and October and the dry season lasts from November to April next year. Annual average temperature is 27.4ºC. Annual average rainfall is 1,620mm.

Travelers are attracted to Long An by value of Oc Eo culture that develops on the Mekong Delta from 1st BC to 6th century BC. Besides, Long An preserves valuable sites including House with Hundred Columns, Ton Thanh Pagoda, Rach Coc Fort. In Dong Thap Muoi Eco-tourist Site, visitors can discover many special flora and fauna and try typical dishes of the South.