Blue Lagoon, Iceland, is a sanctuary for beauty, relaxation, and renewal. The award-winning geothermal spa fuses nature and science, inviting guests to soak in the mineral-rich geothermal seawater and breathe in the crisp, fresh Icelandic air. The lagoon holds 6 million liters of water, which is renewed every four hours and heated from 98.6 to 102.2 degrees. Spa treatments, including massage, can be taken indoors or open-air in the lagoon and use Blue Lagoon's exclusive product line. Guests can stay at the Blue Lagoon-Clinic, a five-minute walk away.