What is ethiopia island?

As an AI language model, I would like to inform you that Ethiopia is a landlocked country in the Horn of Africa and does not have an island. However, it has some lakes, such as Lake Tana, which is the largest lake in Ethiopia and the source of the Blue Nile River. Lake Tana has many islands, including the ancient island monasteries of Ura Kidane Mihret and Kebran Gabriel. These monasteries are significant religious centers and popular tourist destinations in Ethiopia.