A man standing on a canoe near the town of Old Fangak.
The Sudd region is one of the world's largest wetlands. Its inhabitants have adapted their lives to the natural ebb and flow of seasonal floods, which depend on rainfall patterns and water levels in upstream Lake Victoria, Uganda.
However in recent years extreme flooding has engulfed up to two-thirds of South Sudan.
In Old Fangak, only mud dykes protect the town's thousands of inhabitants from submersion.
Old Fangak, Jonglei state, South Sudan, July 2024.