Between July and October the Tarangire River is effectively the only water for a long way, and that single fact produces the elephant densities the park is known for.
The mechanism
In the wet season water is everywhere — pans, seasonal streams, puddles in every depression — and the animals disperse across a much larger ecosystem than the park boundary. As those dry out, everything walks back towards permanent water.
By September the riverbed is mostly sand, and the elephants dig. They excavate holes in the sand with their feet and trunks to reach water filtering through below, and then everything else in the park waits its turn at the holes they have made.
What that looks like
Not a lone bull in the distance — extended family herds, several within sight of each other along a few kilometres of river. Calves of every size, matriarchs managing the queue, and a great deal of noise.
The baobabs
Tarangire’s other signature. Many of them carry deep vertical scarring where elephants have stripped the bark for the moisture in the fibrous wood beneath. Some of these trees are a thousand years old and have been doing this for a long time.
Why most people see too little of it
Tarangire is usually sold as a one-night stop on the way to the crater, and the day visitors leave by mid-afternoon. Stay a second night and go south towards the Silale swamps, which most itineraries never reach, and the park empties out around you.
And in the green season
The reverse. Rain disperses the water and the elephants spread far beyond the park. The park is green and lovely and holds much less game. If elephants are the reason you are going, go in the dry.
