What made it difficult for the ancient Egyptians to transport goods southward down 1 Jile?

One of the main challenges the ancient Egyptians faced when transporting goods southward down the Nile was the strong current of the river. Unlike traveling upstream, where they could use sails and rowers to maneuver against the flow, going downstream necessitated careful navigation to avoid hazards and control their vessels in the swift waters. Additionally, the reliability of the seasonal floods made it tricky; fluctuations in water levels could create obstacles like sudden sandbanks or dangerous rapids, complicating their routes and potentially damaging cargo. Nevertheless, the ancient Egyptians were resourceful, using flat-bottomed boats that could easily navigate those changing conditions!