The Blue Lagoon in Iceland - eruption, seismic activity, and volcanic activity alert!
- Einar Páll Svavarsson
- May 28
- 4 min read
Updated: 28/05/2025. A hazardous situation has developed around the Blue Lagoon. In recent months, an unusual amount of magma has accumulated in and below the Blue Lagoon, initiating eruptions close to the lagoon. There is also a real danger of significant disaster around the lagoon, the power plant at Svartsengi, and the town of Grindavík, which has become very dangerous. Icelandic authorities all thoroughly monitor this. Iceland is a volcanic island, and all the above areas are within a hazardous zone. There is a significant risk of a major disaster occurring in the lagoon, as well as in the town of Grindavík and at the Svartsengi power plant. These locations are situated within one of Iceland's 40 volcanic systems. The Icelandic authorities are closely monitoring the situation.
Currently, the Blue Lagoon is open
In recent years, the Blue Lagoon geothermal bath and spa on the Reykjanes Peninsula in Iceland has become a prominent tourist landmark. It has achieved global acclaim, comparable to Big Ben in London and the Eiffel Tower in Paris. As one of Iceland's most iconic attractions, it draws tourists eager to experience its unique offerings alongside the country's other renowned natural wonders. The Blue Lagoon stands as Iceland's top tourist destination for a compelling reason. It is one of the rare places on Earth where you can immerse yourself in geothermal waters, naturally heated by the Earth's forces, and enjoy a relaxing, soothing ambiance. The bath's primary source isn't technology but the glowing magma beneath the surface. This lava heats the water, creating a natural marvel found only on a volcanic island.
Workers’ Favorite Haunt
These unique geothermal baths were probably first discovered in the 1970s by the workers building the power plant. During construction, the workers used this natural pool to wash and relax after a long and exhausting day. Soon, the word spread about the water's extraordinary qualities. It is extremely rich in silica and sulfur, and thus an became an excellent cure for skin diseases like psoriasis. Additionally, it was great for relaxation and comfort.
How the healing Blue Lagoon was discovered
Icelanders utilize geothermal heating to warm their homes. Power plants are constructed to harness the hot water from the ground, distributing it to radiators in residential areas. This represents our approach to green renewable energy. During the late 1970s, when municipalities were developing the geothermal heating plant near Mount Svartsengi on the Reykjanes Peninsula, a large lagoon formed in the adjacent lava field. The lava was insufficiently porous to allow the water to seep away. The plant was intended to heat homes in Keflavik, Grindavík, Njarðvík, and Vogar. Initially, the small lake attracted attention due to its striking color and milky texture. The first recreational use of the pool involved young people enjoying a summer night swim and socializing. Valur Margeirsson, a young resident of Keflavik, was suffering from psoriasis. He speculated that the water and natural chemicals in the lagoon might aid in healing his skin. Despite skepticism from his family and the head physician at the National Hospital's dermatology department, who cautioned against the unknown mix of seawater and geothermal chemicals, his dermatologist encouraged him to try bathing in the lagoon. With permission from the CEO of the Svartsengi Power Plant, Mr. Margeirsson entered the Blue Lagoon in September 1981. To his satisfaction, after several baths, he discovered that swimming in the geothermal lagoon alleviated his condition. In subsequent years, more individuals with psoriasis sought relief in the lagoon, and eventually, others began visiting for leisure. Gradually, the Blue Lagoon became established. Today, it welcomes thousands of visitors daily, making it one of Iceland's most renowned tourist attractions. A few years ago, Mr. Margeirsson, the discoverer of the Blue Lagoon, passed away at the age of 66.
A lagoon from the Geothermal Power Plant became a popular bath
In the early years, public spas operated at the original location. However, the natural setting was somewhat hazardous, situated in the midst of a lava field. The pool's bottom was full of fissures, with some hidden rocks posing traps. A company was established to construct a new and safe pool. As the lagoon became more accessible for bathing, it attracted more visitors. The current pool is man-made and adheres to stringent security and health regulations. The nearby Svartsengi power plant supplies the pool with water, renewing it every two days. It's important to note that this is green power and a natural, renewable energy source.
Is a visit to the Blue Logon worth it?
I've encountered countless people who have explored Iceland solo, with private guides, or on bus tours with large companies. Every single one of them who visited the Blue Lagoon was absolutely thrilled! It's truly a magical place, offering an experience like no other. Imagine the bliss of swimming in the vibrant blue waters surrounded by lava—it's both soothing and a touch exotic. Plus, the lagoon and its facilities are top-notch, from the impeccable service to the luxurious baths, the charming café, and the exquisite restaurants. This is a must-visit destination in Iceland that you'll adore. While most visitors thoroughly enjoy it, many feel it's a once-in-a-lifetime experience rather than a repeat visit.
Recently renovated, and a true joy to visit
The Blue Lagoon and its surrounding areas have recently undergone renovations, transforming it into a state-of-the-art geothermal pool. The water temperature in the lagoon's bathing and swimming areas averages between 37-39°C (90-100°F). In addition to the public pools, Blue Lagoon operates a research and development facility dedicated to discovering treatments for skin ailments, utilizing the mineral-rich water.
The Blue Lagoon is highly accessible. To reach it, take Road Nr. 41, the primary route for most visitors in Iceland, which links Keflavík International Airport with Reykjavík, the capital. Approximately 30 kilometers from Reykjavík, turn south onto Road Nr. 43 towards the town of Grindavík. Just a few kilometers before reaching Grindavík, you will see the Geothermal Power Plant at Svartsengi, with clear signage directing you to the Blue Lagoon via Road Nr. 426.
Location of the Blue Lagoon on the map of Iceland
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