Mount Longonot is the dormant volcano you can see from the road as you drop into Kenya's Great Rift Valley, and it makes one of the best day hikes anywhere near Nairobi. You climb steeply to the rim of a huge crater, then walk a full loop around the edge with the crater on one side and the Rift Valley on the other. It is a short hike by distance and a hard one by feel, and most people finish it in well under half a day.
Here is what the mountain actually is, what the trail is like, how tough it really gets, and how to plan a day around it.
What is Mount Longonot?
Mount Longonot is a stratovolcano in the Great Rift Valley, sitting southeast of Lake Naivasha and around 60 kilometers northwest of Nairobi. It is dormant rather than extinct. The last eruption is thought to have happened in the 1860s, and there are still small steam vents around the crater walls.
The whole mountain is protected as Mount Longonot National Park, run by the Kenya Wildlife Service. The summit reaches 2,776 meters and is capped by a crater roughly 1.8 kilometers across, with a patch of forest growing on the floor far below. That crater is the reason people come. There are not many places where you can walk a complete circle around the top of a volcano in a morning.
Quick facts
| What | Detail |
|---|---|
| Summit height | 2,776 meters (9,108 feet) |
| Gate to crater rim | About 3 kilometers, roughly 600 meters of climbing |
| Crater rim loop | About 7.2 kilometers |
| Full hike, gate to rim, loop and back | About 13.5 kilometers |
| Total time | 4 to 6 hours including breaks |
| Difficulty | Moderate to hard; steep, loose and shadeless |
| Best start time | Between 7am and 9am |
| Where | Mount Longonot National Park, southeast of Lake Naivasha |
| Pairs with | Hell's Gate National Park and Lake Naivasha |
What is the trail actually like?
There is one main route and it is easy to follow. From the gate the track is wide and gentle for a few minutes, then it tilts upward and basically stays that way. The surface is dry volcanic dirt with loose stone in places, and some of the steeper stretches have rough steps cut into the slope to help.
That first section is about 3 kilometers and gains roughly 600 meters. Most reasonably fit people reach the crater rim in an hour to an hour and a half. The moment you top out is the payoff: the ground drops away in front of you into a wide bowl with trees on the floor, and behind you the Rift Valley opens up with Lake Naivasha spread out to the northwest.
Then comes the part people underestimate. The rim loop is about 7.2 kilometers and it is not flat. It rolls constantly up and down over a series of small peaks, and the highest point on the circuit is the true summit. The path is narrow, dusty and loose, with steep drops into the crater on one side. Going anticlockwise gets the hardest climbing done early.
How hard is the Mount Longonot hike really?
Harder than the numbers suggest. Thirteen kilometers sounds easy, but the combination of steep gradients, loose footing, high sun and thin air at nearly 2,800 meters makes it a real workout. People who hike regularly find it manageable. People who do not tend to find the rim loop much longer than expected.
Three things make it tough. There is no shade anywhere above the gate, so you are in full sun the whole way. There is no water on the mountain at all, so everything you drink you carry. And the loose scree means you spend energy on balance as well as on climbing, especially coming back down.
None of that is a reason to skip it. It just means you should start early, carry more water than feels necessary, and be honest about whether you want the full rim circuit or just the rim viewpoint and back.
Can you walk down into the crater?
No. Hikers are expected to stay on the marked rim trail. The crater walls are steep, loose and unstable, and going over the edge is how people get hurt. In late 2025, a hiker who fell into the crater needed an overnight rescue operation involving KWS, the Red Cross, the fire brigade and police, and came away with a broken leg.
Treat the crater as something you look at, not something you enter. On the rim itself, stay back from the edge on windy days and take the descents slowly.
What should you carry?
- Water. At least 2 to 3 liters per person. There is none on the mountain. Kenya restricts single-use plastics in its national parks, so bring a refillable bottle.
- Sun protection. Hat, sunglasses and sunscreen. The trail is completely open.
- Proper shoes. Trail shoes or boots with real grip. The dust turns slick underfoot and to mud after rain.
- Snacks. Something salty and something sweet. There is nowhere to buy food once you start.
- A light layer. It can be cool and windy on the rim even when the gate is hot.
- A small first aid kit and a charged phone.
When should you go and what time should you start?
Start between 7am and 9am. The park is open through the day, but by late morning the sun on that exposed slope is punishing, and starting late means finishing the rim loop in the hottest part of the afternoon. An early start also gives you the clearest views before haze builds up over the valley.
For time of year, aim for the drier months. Kenya's driest stretches are roughly January to February and June to October, when the trail is firm and the views are long. During the wetter months the volcanic soil turns to slippery mud, which makes the steep sections genuinely unpleasant. Weekdays are much quieter than weekends.
How do you get to Mount Longonot?
From Nairobi it is about an hour and a half by road, heading northwest on the Nairobi to Naivasha highway. From Naivasha town it is only about 20 to 30 minutes. The park gate sits close to Longonot town, and the trailhead starts at the gate itself, so there is no long approach walk.
Most visitors come as a day trip from Nairobi or as a morning activity from a lodge around Lake Naivasha. If you are building a wider trip, our Kenya tour packages can slot Longonot in alongside the safari parks. All visitors should also sort entry paperwork in advance through the official Kenya Electronic Travel Authorization portal, which takes a few working days to process.
Do you need a guide or a ranger?
Not strictly. The route is a single well worn path and it is very hard to get lost. That said, a KWS guide is worth taking if it is your first time, if you are hiking alone, or if you want someone who knows the terrain when the rim gets narrow. Guides can be arranged at the gate.
Wildlife on the lower slopes is another reason people like having a ranger along. The park holds zebra, giraffe, buffalo, Thomson's gazelle and hartebeest, and while sightings are not guaranteed, buffalo in particular deserve respect. If you are weighing up general travel concerns, our piece on whether Kenya is safe covers the wider picture.
What should you combine it with?
Hell's Gate National Park is the standard pairing, and it works well. It is close by on the other side of Lake Naivasha, you can cycle among zebra and giraffe there, and the gorge walk is a completely different kind of outing from a volcano climb. Longonot in the morning and Hell's Gate in the afternoon makes a full but very doable day.
A boat trip on Lake Naivasha, with its hippos and fish eagles, is the gentler option if your legs are finished. Many travelers fold all of this into a longer route, like our Nairobi, Maasai Mara and Lake Naivasha Tour. For more ideas across the country, see our roundup of things to do in Kenya, and check current park information on the Kenya Wildlife Service website before you travel.
Frequently asked questions about hiking Mount Longonot
How long does it take to hike Mount Longonot?
Most hikers take 4 to 6 hours in total, including breaks. Reaching the crater rim from the gate takes about 1 to 1.5 hours, and the 7.2 kilometer rim loop adds another 2 to 3 hours. If you skip the loop and return from the rim, you can be done in around 3 hours.
How high is Mount Longonot?
Mount Longonot rises to 2,776 meters, or 9,108 feet, at its summit. The park gate sits at roughly 2,150 meters, so the climb to the crater rim gains about 600 meters. The highest point of the mountain is on the rim loop itself, not at the spot where you first reach the rim.
Is Mount Longonot hard to climb for beginners?
It is doable for a beginner in reasonable shape, but it is not gentle. The climb is steep, the ground is loose, and there is no shade or water anywhere on the mountain. Beginners often walk to the crater rim, enjoy the view and turn back, rather than committing to the full rim circuit.
Can you hike into the Mount Longonot crater?
No. Visitors are expected to stay on the marked rim trail. The crater walls are steep and unstable, and falls have led to serious injuries and difficult rescues. Enjoy the crater and its forested floor from the rim, keep back from the edge in strong wind, and take the steeper descents slowly.
What is the best time of year to hike Mount Longonot?
The drier months are best, roughly January to February and June to October. The trail is firm, the dust is manageable and the views across the Rift Valley are clearest. In the wetter months the volcanic soil becomes slippery, which makes the steep sections and the narrow rim path much harder work.
How far is Mount Longonot from Nairobi?
Mount Longonot is about 60 kilometers northwest of Nairobi, which is roughly an hour and a half by road on the Nairobi to Naivasha highway. From Naivasha town it is only about 20 to 30 minutes. That makes it easy as a day trip from Nairobi or a morning outing from a Lake Naivasha lodge.
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