1. A floating fishing camp drifts in the Sudd, one of Africa's largest wetlands-more than 20, 000 square miles in the rainy season.

2. A herd of buffalo navigate grasslands in the Sudd, which contains about 10, 000 of the animals.

3. Islands in the vast swamplands of the Sudd, southern Sudan.

4. The dangers can be seen all too clearly in remote villages like Longuchuk, near the oil-rich Sudd marshes of Upper Nile state.

5. Masses of vegetation float like giant lily pads on the ever changing surface of the Sudd.