Plans are underway for a new bathing lagoon within ON’s Geothermal Park in the coming years, and development work has been ongoing. The preliminary design of the facilities and visitor areas in Hveradalir is now complete, with the lagoon slated to open in summer 2028.
Perfect Circular Process of Geothermal Heat
The new lagoon in Hveradalir will play a key role in ON’s Geothermal Park, a hub for innovation and sustainability where forward-thinking companies build solutions that optimize resource use and minimize waste. The lagoon’s design is founded on sustainability, circular-economy principles, and health: the geothermal fluid that ON POWER uses for energy production will continue to heat the lagoon and then be pumped back into the reservoir to reheat, creating a truly closed-loop cycle.
Seamlessly Integrated into the Landscape
The lagoon will cover up to 6,000 m², with distinct bathing areas to ensure efficient use of geothermal heat. The total built area will also be about 6,000 m², carefully blended into the surroundings. Situated in the heart of the Stóradalur crater in Hveradalir, visitors will enjoy breathtaking views of the plateau and surrounding geothermal fields. This project is the only bathing lagoon in Iceland to have undergone an environmental assessment by the Icelandic Environment Agency. All materials and infrastructure will be chosen for sustainability, with minimizing environmental impact as a priority.
This emphasis aligns perfectly with the Geothermal Park’s mission to welcome companies focused on sustainability, geothermal innovation, and the circular community.
Great Satisfaction with the Partnership
The project is a collaboration between Hveradalir ehf., the Ölfus municipality (the local planning authority), and the Geothermal Park. Þórir Garðarsson, Chairman of Hveradalir, calls this a major step toward developing an exciting bathing experience for Icelandic and international guests based on Icelandic bathing culture. “The lagoon in Hveradalir will be unique in three ways: its circular-economy approach, the health benefits of geothermal fluid, and its location in the Stóradalur crater. It will be a one-of-a-kind destination for those seeking nature and wellness in a sustainably designed environment that highlights the link between experience and geothermal resources. We’ve enjoyed excellent collaboration with ON POWER, and we’re thrilled that the lagoon will become part of the Geothermal Park at Hellisheiði,” says Þórir.
Helga Kristín Jóhannsdóttir, Business Development Manager of ON’s Geothermal Park, echoes this enthusiasm: “We at ON POWER are very pleased with the collaboration and excited to see this great idea for a lagoon in Hveradalir come to life. We welcome more companies to ON’s Geothermal Park, where countless opportunities exist and we’re building a circular community in which partners share infrastructure, knowledge, and resources to minimize waste and maximize benefits for businesses, society, and nature. We support geothermal-related innovation of which this lagoon is an excellent example and thus accelerate the advancement of green technologies. Together, we work toward the responsible use of the site’s resources.”
