The Blue Lagoon Iceland

The Blue Lagoon: Iceland’s Most Iconic Geothermal Spa

Nestled in a lava field on the Reykjanes Peninsula, the Blue Lagoon is one of Iceland’s most famous and surreal attractions. Known for its milky-blue, mineral-rich waters and otherworldly landscape, this geothermal spa is often considered a must-visit destination for travelers to Iceland. While commonly associated with Reykjavik due to its accessibility, the Blue Lagoon is actually located about 45 minutes southwest of the capital and just 20 minutes from Keflavík International Airport—making it an ideal stop upon arrival or departure.

A Spa Born of Science and Nature

The Blue Lagoon was formed in the early 1980s, not by nature alone, but as a byproduct of the nearby Svartsengi geothermal power plant. As part of the plant’s operations, superheated water—rich in silica, algae, and minerals—was released into the surrounding lava field, eventually pooling into what became the lagoon.

Locals began to bathe in the warm waters and soon discovered its remarkable effects on the skin, particularly for conditions like psoriasis. By the 1990s, the site was transformed into a formal spa, and today it is recognized as a world-class wellness destination.

The Experience

The lagoon’s water is maintained at a soothing 37–39°C (98–102°F), perfect for relaxation in any season, even during Iceland’s snowy winters. The silica in the water gives it its unique blue color and is also offered to guests as a natural face mask, provided free in pots along the lagoon’s edges. The algae, on the other hand, contributes to the water’s softness and is known for its anti-aging properties.

Guests can enjoy a range of experiences, from the basic entry (which includes a silica mask and towel) to more luxurious options like private changing rooms, in-water massages, and access to the exclusive Retreat Spa, complete with underground steam rooms and a more secluded lagoon.

Dining and Amenities

The Blue Lagoon is more than just a spa—it’s a full experience. The on-site Lava Restaurant, built into a lava cliff, offers gourmet Icelandic cuisine with panoramic views of the lagoon. For fine dining, Moss Restaurant, located in the Retreat Hotel, has even earned a Michelin recommendation.

Other amenities include a bar directly in the water, a skin care boutique selling products made with lagoon ingredients, and even a luxury hotel for those who want to stay overnight.

A Place of Contrast and Calm

What makes the Blue Lagoon truly unforgettable is the stark contrast between the serene, warm waters and the rugged, black lava landscape surrounding it. In winter, snow often dusts the rocks, while steam rises gently from the surface—creating an almost cinematic atmosphere that feels both futuristic and primal.

Tips for Visiting

• Book in advance: The Blue Lagoon is extremely popular, and timed entry is required.

• Don’t forget conditioner: The silica can make hair stiff, so apply conditioner liberally before entering.

• Bring a swimsuit, though rentals are available.

• Plan time wisely: Many travelers visit en route to or from the airport.

Not Just a Tourist Trap

Though it’s one of Iceland’s top tourist attractions, the Blue Lagoon is well-maintained, efficiently run, and genuinely rewarding. For first-time visitors, it offers an accessible, relaxing way to experience Iceland’s geothermal wonders without venturing deep into the wilderness.

Whether you seek healing, luxury, or simply a once-in-a-lifetime soak surrounded by lava and sky, the Blue Lagoon delivers an experience that’s as rejuvenating as it is unforgettable.