This desolate spot in Po-Metru is avoided even by Po-Matoran. It got its name from the fact that even the slightest noise will echo time and again off the rocks. It is home to many species of wild Rahi and is a favorite of Kikanalo, who enjoy running through its narrow, winding passages. Lately, Matoran have been barred from entering the area by Vahki squads. Why this is so, and what may be going on there, remains a mystery.