The route approaches Mount Kenya from the northwest. The summit trail leads to the main peaks at a distance of about 10 kilometres and an altitude of over 2,000 meters. It can be done in one day. The route requires no technical climbing.
The Sirimon route is the least used of the three main routes, but features the most gradual ascent profile and best acclimatization options. The route passes through impressive Yellowwood forests in the lower reaches and features abundant wildlife and beautiful alpine scenery higher up.
The track climbs up through the forest. On the north side of the mountain there is a no bamboo zone, so the forest gradually turns into moorland covered with giant heather. The track ends at Old Moses Hut and becomes a path.
The path climbs over a ridge, before rejoining the main path ascending the Mackinder Valley. Shipton’s Cave can be found in the rock wall to the left of the steep path just before reaching Shipton’s Camp.