African energy company KenGen is planning to open a geothermal spa at its Olkaria plant, adjoining Hells Gate National Park in Kenya.

Expected to be up and running by Easter 2013, the site, which is an hour's drive from Nairobi, will feature several open-air lagoons with water temperatures up to 40 degrees celsius, as well as steamrooms and saunas.

Adjoining the spa, there will be a visitor centre and museum, but there are currently no plans for accommodation.