The inland area of Vietnam looks similar to an S shape, the bottom area of the country is the Mekong Delta and the southernmost area of the Mekong Delta is Ca Mau. This is where the inland of Vietnam protrudes into the East Vietnam Sea of which the tip is Cape Ca Mau. Cape Ca Mau is where you can observe both sunrise and sunset on the sea.

Ca Mau Province is bordered to the north by Kien Giang Province, to the east by Bac Lieu Province; to the south by the East Vietnam Sea; to the west by the Rach Gia Gulf. Ca Mau has 145km of coastline to the Rach Gia Gulf and 104km to the East Vietnam Sea.

The land of Ca Mau is basically flat with the terrain slightly goes down from the north and north-east to the south and south-west. The average altitude of Ca Mau is about 0.5-1.5m above sea level with many areas permanently under water which are marshland mostly covered with cajeput and mangrove forests and which are home to rich underwater species. There is a maze of rivers, creeks and arroyos which crisscross the land making it favorable for transport by waterway.

There are several rivers and several estuaries at Ca Mau. The big rivers are Cua Lon, Ganh Hao, Bay Hap, Ong Doc and Trem Trem. The climate at Ca Mau is monsoon tropic with 2 seasons per year: rainy season May-October (south-westerly winds) and dry season November-April (north-easterly winds). The temperate ranges from 24-29oC.