Egypt's Annual Flood

Previously in Herodotus

97. When the Nile comes over the land, the cities alone are seen rising above the water, resembling more nearly than anything else the islands in the Agean sea; for the rest of Egypt becomes a sea and the cities alone rise above water. Accordingly, whenever this happens, they pass by water not now by the channels of the river but over the
midst of the plain: for example, as one sails up from Naucratis to Memphis the passage is then close by the pyramids, whereas the usual passage is not the same even here but goes by the point of the Delta and the city of Kercasoros; while if you sail over the plain to Naucratis from the sea and from Canobos, you will go by Anthylla and the city called after Archander.

- Herodotus, Book II

More Information: Egypt, Herodotus's Book.