Sof Omar is one of the most spectacular and extensive underground cave systems in the world. Formed by the Wabi River, as it changed its course in the distant past and carved out a new channel through limestone foothills, the Sof Omar system is an extraordinary natural phenomenon of breathtaking beauty.

The cave which is now an important Islamic Shrine, was named after the saintly sheikh Sof Omar, who took refuge here many centuries ago, have a religious history that predates the arrival of the Muslims in Bale - a history calibrated in thousands of years.