I recently traveled through Ethiopia for 3 weeks. What an amazing journey! Part of my trip was a 3-day hiking tour in the beautiful Simien mountains. I traveled solo but I had a very good guide named Gismu Siyum (ethiopiatrek.com). He is very well trained in his profession, has an extensive knowledge of the area and speaks English quite well. He took very good care of me and made the hike a safe and unforgettable trip. I only hired him for the hike but learned that he can also organize full trips trough Ethiopia. I would definitely recommend him.