The Blue Lagoon is one of Iceland’s most famous and iconic hot spring attractions, renowned for its milky-blue geothermal waters and stunning volcanic landscape. Located in the heart of the Reykjanes Peninsula, this luxurious spa is set within a lava field, creating a surreal and otherworldly atmosphere. The lagoon’s water, rich in minerals like silica and sulfur, is naturally heated by geothermal activity and is believed to have healing properties, especially for the skin.
Visitors to the Blue Lagoon can soak in the warm, soothing waters while enjoying panoramic views of the surrounding lava fields and distant mountains. The lagoon also offers a range of spa treatments, including silica mud masks and in-water massages, enhancing the relaxation experience. The on-site facilities are world-class, with modern amenities, a fine dining restaurant, and a variety of relaxation areas.
Beyond its rejuvenating waters, the Blue Lagoon is also a marvel of sustainable engineering. The lagoon is fed by the excess water from a nearby geothermal power plant, showcasing how Iceland harnesses its natural resources for both energy and leisure. Whether visited as a day trip from Reykjavik or as a pre-flight relaxation stop, the Blue Lagoon offers a uniquely Icelandic experience that combines luxury, nature, and innovation.
Blue Lagoon Facts
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Size: The Blue Lagoon covers approximately 8,700 square meters.
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Water Temperature: A consistent 37–40°C (98–104°F) year-round.
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Visitors per Year: Over 1 million visitors annually.
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Type of Lava: The lagoon sits within a lava field formed by a volcanic eruption around 800 years ago, specifically consisting of porous basalt lava.
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Water Source: The water is rich in silica, algae, and minerals, which give it its distinctive blue color.
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Average Visit Duration: Visitors typically spend around 2 to 3 hours enjoying the lagoon.
The Iceland Blue Lagoon geothermal spa has become an iconic destination, attracting visitors from around the world who come to experience the rejuvenating properties of its mineral-rich waters. The lagoon is especially famous for its therapeutic effects, particularly for people with skin conditions like psoriasis.
History of the Blue Lagoon
The Blue Lagoon is not always the plush spa that it is today. It actually started as an overflow in 1976 of operations at the nearby Svartsengi geothermal power plant. In extracting geothermal energy, the plant had to dig into the ground until it reached superheated water deep within the earth. This water, rich in minerals, flowed into a natural pool where the Blue Lagoon now exists.
The first person to take a dip into its waters was Valur Margeirsson, who went in in 1981. Locals were skeptical about the thought of it at that time, teasingly naming it the "blue mud pool," but soon enough, Margeirsson felt, as others afterward, the healing powers of the water. People suffering from skin ailments, especially psoriasis, felt relieved and soothed in the warm, mineral-rich waters. News spread about its possible health benefits, and by 1987, bathing facilities first opened around the pool.
Over the years, the Blue Lagoon developed from a no-frills swimming pool into an international spa and health center. It includes luxury hotels, a world-class research facility, and a host of spa treatments today. That water waste pool has grown big into one of the most famous Icelandic landmarks now, which welcomes millions of visitors.
Blue Lagoon Geology
The Blue Lagoon is situated in an enormous lava field on the Reykjanes Peninsula, quite literally a geothermal wonder. The lava here is mostly porous basalt, which came from a volcanic eruption some 800 years ago. It is this particular volcanic rock that balance of the lagoon ecosystem depends upon by allowing geothermal sea water to seep through the ground, circulating minerals and heating it naturally.
The water itself comes from the depths of the Earth, hauled up from about 2,000 meters (6,561 feet) beneath the surface. At such depth, the water reaches up to 240°C (464°F) and mixes with seawater. Cooling down during its uprising, it gets filtered through layers of porous basalt, coming out at the surface as the warm, mineral-rich water of the Blue Lagoon geothermal spa.
The special geological features of the place also contribute to keeping the water in its typical composition, rich in silica, algae, and minerals that form the core of its healing properties.
Healing Powers of the Blue Lagoon
The Blue Lagoon is celebrated for its healing properties, thanks to the unique combination of minerals in the water. The lagoon is especially rich in silica, algae, and mineral salts, which together help exfoliate, hydrate, and rejuvenate the skin. Visitors often mention loving the feeling of a softer, smoother skin after spending time in the lagoon.
The lagoon has become a popular destination for people with psoriasis. In fact, a Blue Lagoon psoriasis treatment program has been developed, which uses the lagoon’s natural resources to relieve symptoms. The high silica content is particularly beneficial, as it forms a protective layer over the skin, reducing irritation and inflammation.
Where is the Blue Lagoon?
The Blue Lagoon is located on the Reykjanes Peninsula in Southwest Iceland, a geothermally active area, about 20 kilometers (12 miles) from Keflavík International Airport and 50 kilometers (31 miles) from Reykjavik. Its proximity to the airport makes it a convenient stop for travelers arriving or departing Iceland.
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GPS Coordinates: 63°52'50.9"N 22°26'50.3"W
How to Get to the Blue Lagoon
It is easy to get there by yourself, as it's reachable from both Reykjavik and Keflavík International Airport. It's about a 45-minute-drive from Reykjavik to the Blue Lagoon down Route 41 toward Keflavík, and then you hop onto Route 43 towards the lagoon. The lagoon is close to the KEF airport, about 20 minutes away.
A lot of visitors join a guided tour offering immediate transport to the destination or even add a stop at the Blue Lagoon Geothermal spa with their private airport shuttle. You can also rent a car and drive yourself, so you have more freedom to explore the Reykjanes Peninsula.
Tips for Visiting the Blue Lagoon
Visiting the Iceland Blue Lagoon geothermal spa is an extraordinary experience, but there are a few things to keep in mind to make the most of your visit:
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Book in advance: The Blue Lagoon is one of Iceland’s most popular attractions, and tickets often sell out. It’s essential to book your spot ahead of time to secure entry. Just to make sure you’re not disappointed when you arrive.
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Minimum Admission: The basic admission ticket includes access to the lagoon, a silica mud mask, and a drink. More premium options include additional treatments and amenities.
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Protect your hair: The high silica content in the water can dry out hair, so it’s recommended to tie your hair up if possible. Also to apply conditioner (provided at the lagoon) when coming out of the water.
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Children under 2: Unfortunately, children under the age of 2 are not allowed in the lagoon. Children between 2 and 8 must wear inflatable armbands, which are provided free of charge.
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Visiting at night: The Blue Lagoon at night offers a unique experience, with the soft blue glow of the water under the dark sky, making for a magical ambiance. In the winter, you may even catch a glimpse of the Northern Lights while soaking in the thermal pool. Closing hours are from 10 pm to midnight depending on the season.
Blue Lagoon in Winter
A visit to the Blue Lagoon during winter is a surreal experience. The contrast of steaming hot waters with the snow covering the lava fields creates an extraterrestrial atmosphere. Winter is the best time to enjoy the Iceland Blue Lagoon at night, when the darkness amplifies the lagoon's glow and affords it the opportunity to see the Northern Lights. It’s well worth your time to book an evening experience.
