The As Sudd is a part of the Nile that breaks up into channels Full of vegetation. The As Sudd is very difficult to navigate through because of the lily pads and patches of land
The great bend is at least 300 miles long it curves dramatically. The great bend is full of cataracts which are rapids and low water falls. boats can sail for miles between cataracts. Traders once had to unload their boats and deliver their goods by foot.