The Olifantsvlei Nature Reserve is a large section of protected land in Johannesburg South.

[1][2] A wetland, part of the Klip River, runs along its southern border.

The Golden Highway (R553) and N1 roads vertically divide it into three parts.

On its northern border, it lies beneath the towns of Eldorado Park, Nancefield, Devland and Naturena (from west to east).

[3] The marshland, mainly consisting of Phragmites reed beds host a number of species:[4]