Overview
The Sirimon route is widely regarded as the finest approach to Point Lenana, Africa's third-highest peak, and for good reason. Climbing from the north-west flank of Mount Kenya National Park, it offers the driest conditions on the mountain, a steady altitude gain that gives your body time to acclimatise, and sweeping afro-alpine moorland scenery from the very first hour on trail. As you leave the montane forest and emerge onto open ridgelines above 3,000 metres, the landscape shifts dramatically — heather giants three metres tall, groundsels the size of small trees, and the first glimpses of the Lewis Glacier draped across the high volcanic peaks of Batian and Nelion come into view.
Day by day the trek ascends through three distinct ecological zones. The lower moorland between Sirimon Gate (2,650 m) and Old Moses Camp (3,300 m) is alive with buffalo, eland, and the occasional leopard track crossing a muddy trail. Above Old Moses the giant lobelia and senecio plants of the upper moorland appear in surreal clusters, adapted to freeze every night and bask in equatorial sun every day. By the time you arrive at Shipton's Camp (4,200 m) you are sitting below the sheer north face of Batian, watching alpine swifts skim the rock walls while you acclimatise with an afternoon walk into the Hausberg Col area.
The summit push to Point Lenana (4,985 m) departs in the early hours of Day 3, headlamps cutting through the thin, cold air. The route crosses the north face snow field and climbs the rocky ridge to the trig pillar — an ascent that rewards first light arrivals with a sunrise spectacle over the Aberdares, Mount Kilimanjaro on clear days far to the south, and the jagged silhouettes of Batian and Nelion lit amber against the dawn sky. Standing on the highest trekking peak in Kenya is a profoundly moving experience, shared only with the ravens that wheel overhead and your fellow climbers.
The descent retraces the Sirimon route back through the moorland to Old Moses and then to the gate, completing a compact but unforgettable four-day mountain adventure that can be linked with a Nairobi same-day arrival and departure, making it ideal for travellers who want serious altitude without weeks away from home.
Route: Nairobi → Sirimon Gate (2,650 m) → Old Moses (3,300 m) → Shipton's (4,200 m) → Point Lenana (4,985 m) → Old Moses → Nairobi