As we drove past, we saw the buffalo wallowing in the water-hyacinth-choked water:
He then rolled about....
It takes quite a bit of feeling secure, for an animal in the wild, to roll up completely, exposing the tender, vulnerable underbelly, but that's what this animal did:
And then he looked directly at us from far away, as if to ask, "Did you get all that?"
Alas, by the time I switched on my video, the water show was over, and he just lay in the water until we left!
Here's a video of a small herd charging across the jeep path: