The Blue Lagoon geothermal Spa is one of the most visited attraction in Iceland. The warm waters of the Blue Lagoon are rich in minerals like Silica and Sulfur. The water temperature in the Blue Lagoon bathing area averages a pleasant 40°C (104 °F). The water to the Blue Lagoon is the output of a geothermal power plant nearby.

The Blue Lagoon Spa is located in a lava field in Grindavik on the Reykjanes peninsula aproximetly 13 km from Keflavik international airport and 39 km from the capital Reykjavik.