For three days around October's full moon, Gebel Dakrur is the scene of the Siyaha festival. Thousands of Siwans gather to celebrate the date harvest, renewing friendships and settling any quarrels that broke out over the previous year. Check with the tourist office to find out if it's taking place.
During the festival all Siwans, no matter what their financial or social standing, eat together at a huge feast after the noon prayer each day. The festival is intertwined with Sufism, and each evening, hundreds of men form a circle and join together in a zikr. Siwan women do not attend the festivities, although girls up to about the age of 12 are present until sunset.