Klaserie River Sands

Okavango Delta: Birth of an island

Okavango Delta island, Botswana

The beginnings of an island © Vikram Ghanekar

Written, and photographs, by Vikram Ghanekar

The Okavango Delta is a unique place like nowhere else on Earth. It’s the largest inland delta in the world, where a river disappears into hot Kalahari sand rather than emptying into an ocean, like all other rivers do.

When it rains at its origin in the highlands of Angola, it takes a few months for the waters to reach the Kalahari. This water in turn floods the Kalahari, turning it into a watery paradise. From these flooded areas, small islands emerge.

The emergence of these islands is a phenomenon in itself, brought about by one of the smallest creatures in the desert – the termite.

Aerial view of Okavango Delta, Botswana

A small island forms in the middle of the Okavango Delta © Vikram Ghanekar

Termites live deep underground in huge colonies. Once a year, they develop wings and take off in search of new areas. Once they land, they start building their new home. This termite mound raises the ground above the levels of the floodwaters.

Birds use these mounds as perches, dropping seeds of different fruiting tree in their faeces, as they usually do. The seeds take root and soon small trees dot the termite mound.

Okavango Delta island, Botswana

A large island with many trees, thanks to the termites and birds © Vikram Ghanekar

Tree roots in turn start holding the soil together, adding to the height and girth of the mound and voilà – an island is born. Soon more trees join in, expanding the size of the island.

It is so fascinating to see this phenomenon from the air as it gives you the right perspective. One can actually see the ‘birth’ of an island.

Buffalo in Okavango Delta, Botswana

An island with a number of termite mounds © Vikram Ghanekar

TRAVEL TO THE OKAVANGO DELTA WITH AFRICA GEOGRAPHIC

Travel in Africa is about knowing when and where to go, and with whom. A few weeks too early / late and a few kilometres off course and you could miss the greatest show on Earth. And wouldn’t that be a pity? Contact an Africa Geographic safari consultant to plan your dream vacation.



Guest Blogger

In the Guest Blogger profile, you'll see fresh and exciting content from a range of contributors who have submitted their content to us on a once-off or temporary basis, including press releases, campaigns and exciting adventure and travel tales!

Africa Geographic