A Geothermal Wonder
The Blue Lagoon's signature milky blue color comes from the high concentration of silica suspended in the water. The geothermal seawater originates 2,000 meters below the surface, where it is heated by volcanic activity before rising to the surface at approximately 240 degrees Celsius.
After being used in the Svartsengi power plant to generate electricity, the mineral-rich water flows into the lagoon at a comfortable bathing temperature, creating one of the most photographed destinations in Iceland.
