Early morning, depart south from Addis Ababa to Lake Ziway, one of the chains of lakes found in the Great Rift Valley. Here you will take a boat trip on Lake Ziway to the island of Tullo Gudo. The island hosts the church of Maryam Tsion which, according to tradition, once housed the Ark of the Covenant to hide it from invaders. After the visit, return to shore, enjoying the bountiful birdlife on this lake and possibly some hippos. Return to Addis Ababa late afternoon.