Few national parks let you leave the vehicle behind, but at Hell's Gate you can explore by bicycle or on foot. Named after a narrow break in the cliffs, the park protects 68 square kilometres of volcanic scenery just south of Lake Naivasha, making it one of the most active Kenya tourist attractions.
The name was given in 1883 by the explorers Gustav Fischer and Joseph Thomson, after the narrow gorge and the intense geothermal activity they encountered. The gorge was once an outlet of a prehistoric lake that filled this part of the Rift Valley. Created as a national park in 1984, the area today combines wildlife, dramatic geology and one of Africa's largest geothermal energy complexes at Olkaria.
Red cliffs, rock towers and a deep gorge cut by ancient rivers create scenery said to have inspired The Lion King. With no large predators roaming freely, you can pedal past zebras, giraffes, buffaloes and gazelles while vultures and eagles circle the cliffs.
The cliffs are important nesting sites for birds of prey, including Rüppell's vultures, Verreaux's eagles and augur buzzards. Leopards and hyenas are present but rarely seen, which is why cycling and walking are permitted. The combination of exercise, wildlife and scenery makes a day here feel very different from a classic game drive.
The park is about 100 kilometres north-west of Nairobi. Bikes are hired at Elsa Gate, and the ride to the gorge and back takes half a day. Transport, guide and park fees are bundled into the 1-day hiking trip to Hell's Gate.
From Elsa Gate, a mostly flat track of around eight kilometres runs past Fischer's Tower to the Central Tower and the gorge. Vehicles are also allowed, so you can drive in and hire bikes or walk once inside if you prefer.
Use a local guide in the gorge – flash floods can follow rain upstream – and carry plenty of water.
Check your bike's brakes and tyres before setting off, and wear sun protection, as there is little shade. Rock climbing on Fischer's Tower can be arranged with local guides who provide equipment.
Dry conditions make cycling and the gorge walk safest; avoid the gorge during heavy rain.
The main dry seasons run from June to October and December to March. Early morning is the coolest time to cycle and the best for spotting wildlife.
Most visitors sleep at the lakeside lodges and camps of Naivasha, minutes from the gate.
Simple campsites inside the park offer a more adventurous option, with the cliffs glowing at sunset and the stars bright overhead.
Hell's Gate trades big cats for adventure, an energetic contrast to game drives at Lake Nakuru. Fancy another climb nearby? The full-day Mount Longonot hike tackles the volcano that overlooks the park.
It pairs perfectly with a boat trip on Lake Naivasha, making a varied two-day break from Nairobi.
Swap the safari vehicle for a bicycle and spend a memorable morning riding between zebras and canyon walls.