Lake Zengena Zengena Lake is a crater lake located in Awi Zone of Amhara Region in Ethiopia. The lake is situated between the towns Injibara and Kessa only 200 m from the Addis Ababa â Bahir Dar Highway with an elevation of 2500 m. It is the second deepest lake in Ethiopia next to Lake Shalla with a maximum depth of 166m followed by Tirba maximum depth 153m . And also it a closed lakes. The diameter of the lake is roughly 1 km.