With a length of about 900 miles the Blue Nile River originates at Lake Tana in Ethiopia. Being one of the large contributions to the Nile it is an underrated river that is an undiscovered gem of Ethiopia. If you are looking for wildlife, things to do, or authentic spicy Ethiopian food, sunshine, or whitewater rapids, you can find it thanks to the Blue Nile River. During the summer due to the floods and monsoons a vast amount of soil erodes causing the water to turn dark. The Blue Nile is known as Ethiopia’s River of Magic and Mystery.