Egyptians prayed to the Nile god and thanked him for all the blessings that he bestows upon the people, especially during the festival of the inundation, or flooding. "Praise to you, O Nile, that issues from the earth, and comes to nourish Egypt ... That waters the meadows, that Re has created to nourish all cattle. That delivers water to the desert places, which are far from water; it is his dew that falls from heaven ... lord of fish, that makes the waterfowl to go upstream ... that makes barley and creates wheat, so that he may cause the temples to keep festivals".

The Nile god Hapy did not have a temple for his cult, the River Nile was his holy place.

At the feast of the Nile, people and priests made offerings to Hapy by throwing food into the stream. They likely threw a statue of the Nile god himself into the water as a personification of the god.

It is still believed by Egyptians today that the ancient Egyptians used to throw a young girl, called the bride of the Nile, into the Nile as an offering to the god. There is, however, no reference in Ancient Egyptian literature to this event.