The Marangu Route (also known as the Coca-Cola route) is the easiest ascent of Kilimanjaro, although any ascent can be challenging. Climbs can be done over 6 days. It crosses The Saddle, a wide, high-altitude, semi-desert that separates craggy Mawenzi from the main summit Kibo. From the summit, glaciers, screes, cliffs, afro-alpine moorland, and forests lead down to the cultivated foothills.