Heracleion, also known as Thonis, was an ancient Egyptian city located near the Canopic Mouth of the Nile River. It is believed to have been founded around the 8th century BCE and was an important port city for trade and religious rituals.
The city was dedicated to the god of Heracles, who was worshipped in the form of a statue that was said to be over 30 feet tall. Heracleion was also known for its many temples, including one dedicated to the god Amun and another to the goddess Isis.