Set deep within the Olkaria geothermal fields, the spa uses the natural byproduct of nearby geothermal power plants to heat mineral-rich water drawn from deep underground. The result is a series of warm lagoons surrounded by rugged Rift Valley scenery, rising geothermal steam, and expansive volcanic terrain.

For visitors exploring the Naivasha region, the KenGen Geothermal Spa combines nature, geothermal science, and relaxation, making it one of the most distinctive attractions near Lake Naivasha.

Geothermal Pools and Thermal Experience

At the heart of the facility are three large cascading lagoons filled with striking turquoise geothermal water. The water is pumped from underground reservoirs where temperatures exceed 150°C, before being cooled to a comfortable bathing range between 30°C and 40°C.

The spa’s pools are designed to offer varying levels of warmth:

Upper Lagoon – The Hottest Pool

 The first pool is the warmest and closest to the geothermal source. It provides an intense, therapeutic soak that is particularly popular with visitors recovering from long hikes or cycling trips in Hell’s Gate National Park.

Middle Lagoon – Balanced Warmth

 The second pool offers a slightly cooler temperature, making it ideal for longer, more relaxed bathing sessions.

Lower Lagoon – The Coolest Pool

 The final pool provides the most moderate temperature and is often the most comfortable for extended swimming and relaxation.

The geothermal water contains high levels of sulfur and silica, minerals widely believed to support skin health, muscle recovery, and overall relaxation.

Architecture and Scenic Setting

The KenGen Geothermal Spa is known not only for its warm mineral pools but also for its striking modern architectural design.

The facility is arranged in an amphitheatre-style layout, allowing visitors in the pools to enjoy sweeping views of the surrounding Rift Valley cliffs and geothermal steam plumes rising from nearby power stations. This dramatic contrast between sleek design and raw volcanic wilderness gives the spa a truly unique atmosphere.

The main complex includes a restaurant and bar, along with spacious changing rooms, secure lockers, and well-maintained shower facilities. Outdoor relaxation areas feature sunbeds and umbrellas, creating a comfortable resort-like setting in the middle of the geothermal landscape.

Visitor Information

Operating Hours

The spa operates daily from 7:00 AM to 6:00 PM, allowing visitors to enjoy the pools throughout the day.

Spa Entry Fees

(Separate from Hell’s Gate National Park entry fees)

Kenyan Citizens

 Adults: KSh 400

 Children: KSh 100

Kenyan Residents

 Adults: KSh 1,000

 Children: KSh 500

Non-Residents

 Adults: $30

 Children: $15

Park Access

Because the spa is located inside Hell’s Gate National Park, visitors must also pay Kenya Wildlife Service (KWS) park entry fees before accessing the spa. Entry to the park can be made through either the Elsa Gate or the Olkaria Gate.

What to Bring

Visitors are required to wear proper swimwear when entering the pools. For guests who arrive without swimwear, the on-site shop provides swimwear for hire or purchase, ensuring that visitors can still enjoy the geothermal experience.

A Perfect End to a Hell’s Gate Adventure

The KenGen Geothermal Spa has become a popular “finish line” experience for visitors exploring Hell’s Gate National Park. After spending the day cycling through the park’s valleys, hiking its dramatic gorges, or exploring the surrounding geothermal fields, soaking in the warm mineral lagoons offers the perfect way to relax and recover.

As the day winds down, the spa becomes particularly atmospheric. Steam drifts across the pools while the sun sets over the Rift Valley escarpment, creating a memorable setting that blends natural beauty with geothermal energy.

For travelers visiting Naivasha, the KenGen Geothermal Spa stands out as a rare attraction where wellness, nature, and geothermal innovation meet in one extraordinary destination.