What Is the Blue Lagoon?

The Blue Lagoon: Iceland's Iconic Geothermal Spa

The Blue Lagoon is a world‑renowned geothermal spa located in Grindavík, Iceland. Its milky‑blue waters are heated by the nearby Svartsengi geothermal power station, maintaining a comfortable 37–39 °C (98–102 °F). Rich in silica, sulfur, and algae, the water is reputed for its therapeutic benefits.

Key Details

• Origin: Created in 1976 when runoff from the power station's turbines was channeled into a lava field.
• Setting: Surrounded by black lava rock, the lagoon's vivid blue color comes from suspended silica and algae.
• Amenities: Swimming, sauna, steam room, and massage services.
• Access: About 40 minutes from Reykjavík by car or bus; numerous tour operators offer trips.