Parks and reserves. Updated November 2026. 5 min read.
From much of Nairobi on a clear day you can see them on the southwestern horizon: four rounded summits in a row, like the knuckles of a fist. A Maasai story says that is exactly what they are, the knuckles of a giant who fell there. Karen Blixen saw them every day from her farm and opened her most famous book with them. The Ngong Hills rise to about 2,460 meters (8,070 feet) on the edge of the Rift Valley, and the walk along their spine, with Nairobi on one side and the valley floor far below on the other, is the best ridge walk within an hour of the city.
I had a farm in Africa, at the foot of the Ngong Hills.Karen Blixen, Out of Africa (1937)
The short answer: start early from the Kenya Forest Service gate above Ngong town, pay the forest fee, and walk the ridge for about 8 km over the peaks among the wind turbines, with a car waiting at the far end. Allow three to five hours. Do not walk the hills alone or without an escort: hikers have been robbed here in the past, and walking with an armed ranger, booked at the gate, or with an organized guide is the local norm. Conditions change, so check the latest advice before you go; our safety page covers the bigger picture for Kenya.
The hills and the wind farm
The Ngong Hills are part of the eastern wall of the Rift Valley. Their eastern slopes fall gently toward Karen and the city; to the west the ground drops away steeply to the dry floor of the valley, which stretches toward Lake Magadi and the Nguruman escarpment. The ridge itself is open grassland and scrub, with patches of forest on the slopes, and it catches the wind, which is why a line of turbines now stands along it. The wind farm is run by KenGen, Kenya's main power generator, and the turbines make a striking sight on the walk, turning slowly above the grass.
The walk
Most walkers start at the Kenya Forest Service gate above Ngong town, at the northern end of the ridge, where you pay the fee and meet your ranger. The first climb is steep, up to the first knuckle, and after that the path rolls up and down over each summit in turn. The views open in both directions almost at once. Most groups walk the ridge to the southern end, where their driver collects them; others walk out and back to the gate. The path is grass and bare earth, steep in places, and slippery after rain.
| The walk at a glance | Details |
|---|---|
| Distance | About 8 km one way along the ridge |
| Time | About 3 to 5 hours, including stops |
| Climbing | Several steep ups and downs between the peaks |
| Start | Kenya Forest Service gate above Ngong town |
| Finish | The southern end of the ridge, with a pickup arranged in advance, or back to the gate |
| Escort | An armed ranger, booked at the gate or through us, and ideally a guide |
| Fee | A forest entry fee to the Kenya Forest Service, plus the ranger's fee |
| Bring | Two liters of water, a sun hat, a windproof layer and shoes with good grip |
The walk needs moderate fitness. At about 2,400 meters you may feel the altitude a little on the climbs, especially if you have just arrived; walk slowly and drink plenty. There is almost no shade on the ridge, the sun is strong at this height, and the wind can be cold, so come prepared for both.
Safety: go with a ranger or a guide
The hills are not dangerous in themselves, but they are open, quiet in places, and there have been robberies of hikers over the years. For that reason the usual practice, at the time of writing, is to walk with an armed ranger from the Kenya Forest Service or Kenya Wildlife Service, booked at the gate, or with a guide or organized hiking group who arranges one. We always send our travelers with both. Walk in daylight, start early, stay with your group, and leave valuables in the car. Your ranger also knows the slopes, where buffalo and other wildlife sometimes move through the forest patches.
The Blixen connection
Karen Blixen's coffee farm lay at the foot of the hills, on land that is now the Nairobi suburb of Karen, and her house is the Karen Blixen Museum, a short drive from the trailhead. Her friend Denys Finch Hatton, the pilot and hunter, is buried on the lower slopes of the hills, and the grave can be visited on the way. Our Karen Blixen page tells the story, including the parts the film left out.
When to go
The dry months, roughly June to October and January to February, are best: the path is firm and the views are long. In the rains, around March to May and November, mist can hide the views and the path gets muddy. Mornings are clearest; by afternoon haze and cloud often build. On exceptionally clear mornings, some walkers see Kilimanjaro far to the south.
Getting there and combining it
From Karen the trailhead is about 30 to 45 minutes by road; from Westlands or the city center allow 1 to 1.5 hours, depending on traffic on Ngong Road. Arrange your return pickup before you start, because the far end of the ridge is not where taxis wait.
- The Karen Blixen Museum, for the story behind the view
- The Giraffe Centre in Karen, for an afternoon with Rothschild's giraffes
- Lunch in Karen, the leafy suburb at the foot of the hills
- The road onward to Lake Magadi, the pink soda lake two hours south, for a longer day
Ngong Hills make a fine first morning in Kenya: a real walk, big views and the history behind them. We are Kenyan-led, with two U.S. companies behind us, and we arrange the guide, the ranger and the pickup. Pay in full or monthly with no deposit.
