Anou Ifflis, Natural cave in Bouira Province, Algeria.
Anou Ifflis is an extensive limestone cave system in the Djurdjura mountains with approximately 3,200 meters of interconnected passages descending about 805 meters below the surface. The network contains passages and shafts that vary greatly in width, height, and configuration.
Scientific exploration of the cave began in 1933 when explorers Fourastier and André Belin documented its geological features. Their work established the foundation for understanding the cave system and subsequent cave research in the region.
The cave holds meaning for mountaineers in the Kabylie region, who have passed down knowledge of its passages and water patterns through generations. This local expertise shapes how climbers understand and move through the underground landscape.
Visiting requires specialized caving equipment and guidance from experienced cave experts to safely navigate the narrow passages and deep shafts. Physical fitness and technical climbing skills are necessary for this visit.
The cave contains an active erosion system where spring meltwater flows through underground channels, continuously reshaping the passages. This ongoing process means the cave slowly transforms with each season and year.
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