The Krantzkloof Nature Reserve, managed by Ezemvelo KZN Wildlife, conserves 668 ha of the Molweni and Nkutu River gorges that incise the sandstone Kloof plateau in KwaZulu-Natal, South Africa. The reserve conserves coastal scarp forest, sourveld grassland, a cliff face biotope, and aquatic environments along its rivers. Scarp forest is a threatened forest type, protected by South Africa's forests act of 1998, while the grassland is classified as KwaZulu-Natal sandstone sourveld, the most threatened terrestrial habitat in the Durban metropole. The reserve was established in 1950 and was augmented by land donations as late as 1999.

Ezemvelo KZN Wildlife is a governmental organisation responsible for maintaining wildlife conservation areas and biodiversity in KwaZulu-Natal Province, South Africa. Their headquarters is in Queen Elizabeth Park situated on the northern slopes of Pietermaritzburg, the KwaZulu-Natal provincial capital. Prior to 1994, it was known as the Natal Parks Board.