[2] In the past, the Mzimkulu formed part of the border between Eastern Cape and KwaZulu-Natal provinces.

[3] In late February of every year, the river is host to one of South Africa's most popular canoe races, the Drak Challenge.

[4] It rises in the Drakensberg mountains just north of Rhino Peak, with the source being on the Lesotho border.

The scaly yellowfish (Labeobarbus natalensis) is a fish found in the Umzimkulu River System as well as in the Umgeni, Umkomazi, Thukela and the Umfolozi.

It is a common endemic species in KwaZulu-Natal Province and it lives in different habitats between the Drakensberg foothills and the coastal lowlands.