Mount Longonot is impossible to ignore from Naivasha. Its symmetrical cone rises dramatically from the floor of the Great Rift Valley to 2,776 metres above sea level, 750 metres above the surrounding landscape, and is a perfect stratovolcano visible from the highway, the lake, and the escarpment road.
Its name comes from the Maasai word Oloonong’ot, meaning ‘mountain of many spurs’ or ‘steep ridges’, an accurate description of the jagged, heavily eroded rim that defines the summit.
Longonot last erupted in approximately 1863, when lava flows emerged from fissures on the northern flank. It is classified as dormant rather than extinct: periodic geodetic activity recorded between 2004 and 2006 confirmed the presence of active magmatic systems beneath the volcano. Steam vents are still visible around the crater walls, and fumaroles continue to breathe.
The crater itself, 1.8 kilometres wide, is filled with a dense indigenous forest, a remarkable ecosystem that has developed within the old caldera and provides habitat for leopards, buffalo, and a rich bird community. This makes it one of the popular places and areas with activities in Naivasha.
The Mount Longonot Hike: What to Expect
Mount Longonot National Park, managed by the Kenya Wildlife Service and covering 52 square kilometres, has no vehicle roads; all access is by foot. The single trail from the park gate climbs 3.1 kilometres to the crater rim, gaining approximately 630 metres in elevation. The ascent takes most people between 45 minutes and two hours, depending on fitness, though some sections are steep and loose underfoot.
From the rim, the view is extraordinary: Lake Naivasha shimmers in the west, the Rift Valley escarpment rises on both sides, and the far wall of the crater reveals the dense forest within. The full crater rim circuit, a 7.2-kilometre loop around the jagged summit, takes an additional two to three hours and involves some exposure, steep sections, and rewarding views from the true summit at the western end. The complete gate-to-gate circuit (3.1 km up, 7.2 km rim loop, 3.1 km down) totals approximately 13.5 kilometres and takes four to five hours.
Wildlife on Mount Longonot
Despite the challenging terrain, Mount Longonot supports a variety of wildlife. Common zebra, Masai giraffe, Grant’s gazelle, buffalo, hartebeest, and eland are found on the lower slopes. The crater forest is home to baboons and may harbour leopard, though sightings are rare. Over the rim, raptors, including eagles and vultures, circle on the thermals rising from the heated valley floor. A mandatory guide (available at the gate) can help identify both wildlife and geological features.
| Location | Southeast of Lake Naivasha, ~90 km from Nairobi |
| Summit elevation | 2,776 m (9,108 ft) above sea level |
| Park area | 52 sq km |
| Last eruption | ~1863 (lava flows on northern flank) |
| Entry fee (non-resident) | Approximately USD 26 per person |
| Entry fee (citizen) | KES 215 per person |
| Trail distance | 13.5 km full circuit (gate–rim–rim loop–gate) |
| Total hike time | 4–5 hours for full circuit |
| Difficulty | Moderate to challenging |
| Best time | Dry seasons: January–March, July–October; start before 8am |
| Hiker TipsStart as early as possible — the exposed ascent is brutal in midday sun. Carry at least 2 litres of water per person. Wear proper hiking boots; the loose volcanic rock is unforgiving on trail shoes. A guide is mandatory and adds genuine value. Do not attempt the crater rim in fog or rain. |
Getting to Mount Longonot
From Nairobi, take the A104 highway toward Naivasha and turn south at the Mai Mahiu–Narok junction (approximately 70 km from Nairobi). The park gate is clearly signposted about 5 kilometres from the junction. Alternatively, access via Naivasha town is equally direct. The drive from Nairobi takes approximately 90 minutes. Accommodation in Naivasha is the most convenient base for an early morning start.