The town of Imilchil represents a symbol of Berber culture, known for its festival, officially known as Betrothal Festival - the Souk Aamor Agdoud N'Oulmghenni. The legend goes that two young people from different tribes fell in love, but were forbidden to see each other by their families. The grief led them to cry themselves to death, creating the neighbouring lakes of Isli (his) and Tislit (hers) near Imilchil. The families decided to establish a day on the anniversary of the lovers' death - when members of local tribes could marry each other. Thus the Imilchil Marriage Festival was born.