As independant travellers, good trekkers, seniors (late sixties) in Ethiopia for a month, we wanted with Tigray,Danakil, Lalibela, above all go to the Simian mountains. On some websites (particularly the Bradt Guide to Ethiopia) I had read good critics of a young professional guide Company (firstname.lastname@example.org) and exchanged some emails before reaching Addis abeba. We met Sahlie and his brother in Gondar , after a long but nice ride on a Sky bus (around a cheap 400 birrs). We bargained a five days trek,an all included journey, park entrance fees, meals,tents, sleeping bags, cooks,mule men,scouts with a drive to Debark and the park, and a transfer to Axoum at the end , for 400$ each. It was a six people group ,walking at a steady pace (with regular stops)in a technically secured trek, with a very fluent English guide, with a passionate knowledge of the Simien, the endemic animals and plants. This trek, with a 4000 meters summit (every one was able to take his time to reach the summit) in these amazing landscapes was a success, but we recommend to be well escorted. This guide Sahlie was part of such a wonderful trek.