The Imilchil engagement museum (or festival) gained international fame which makes it today a pilgrimage place for tourists. At the end of each summer, in September, since immemorial times, a remote valley of the Middle Atlas, at 2000 meters height, about 20 km from Imilchil, takes on a special effervescence. All neighbourhood Berber tribes gather in the valley before snow which isolates them from the world for several months.

They gather for commercial religious and, especially, social goals. In fact, in addition to trade and religious rituals, women choose among single men those who will become their husbands for one year (in case of disagreement) or forever, hence the name Engagement Museum.

After a year of ploughing and after harvest and picking, the commemoration of the Museum of the Saint (Marabout) of the region, Sidi Ahmed Oulmaghni, comes to crown the end of labour and work and announces the beginning of a new cycle hoping it will be better.
For five days, the engagement ceremony, with all its formalities, is accompanied by the "ahidous” dance which is based upon ancestral traditions.