Exploring the red dunes of Kgalagadi

The red dunes of the Kgalagadi are amongst the most distinctive desert landscapes in southern Africa.

By Leon Louw founder of WhyAfrica and Endorphin Expeditions

During a recent expedition to the Kgalagadi Transfrontier Park we looked at the fascinating geology and unique ecology of the red sand dunes that shape that ancient landscape.

These distinctive dunes of the Kgalagadi are built from deep deposits of iron-rich sands that oxidise over time, giving them their striking red colour.

Their long, linear ridges run in parallel formations, sculpted by prevailing winds rather than water, reflecting a landscape dominated by aeolian (wind-driven processes).

Supporting a range of species

Despite extreme aridity and temperature swings, these dunes support a number of interesting species.

The vegetation is sparse but highly adapted, with grasses like Stipagrostis species stabilising dune slopes and providing critical forage after rare rains.

Scattered shrubs and hardy camelthorn trees anchor deeper root systems into the sands, tapping hidden moisture reserves.

Species in the dunes

Wildlife has evolved remarkable adaptations to this environment.

Iconic desert specialists such as the black-maned Kalahari lions, springbok, and gemsbok traverse vast distances in search of food and water.

Smaller creatures like meerkats and ground squirrels thrive through complex burrow systems that buffer heat extremes. Reptiles and insects are equally specialised, often nocturnal to avoid daytime temperatures.

Image: The red dunes of Kgalagadi are home to iconic species like the desert adapted springbok Image credit: Endorphin Expeditions

Exploring the red dunes of Kgalagadi