Earlier this year one of my favorite travel magazines made an announcement that surprised me a bit. In a special “Wonders of the World” edition, National Geographic listed the Blue Lagoon in Iceland as one of the most impressive wonders of the world. Now this declaration seems fine and normal on the surface, until you realize that the Blue Lagoon really isn’t a natural phenomenon at all.
More than half a million people visit Iceland every year. This may not sound a lot, but keep in mind that there are only 320,000 residents of this northern island. Of this half a million tourists, more than 400,000 visit the Blue Lagoon thermal spa alone. Almost every tourist who visits Iceland visits the Blue Lagoon. This is a stunning statistic and I’m almost positive no attraction in the world can lay claim to a similar market share of visiting tourists. To learn how this has come to be and why the Blue Lagoon isn’t really a natural phenomenon, you have to first learn about the (somewhat) short history of what is arguably the world’s most famous spa.
Iceland is often called the Land of Fire and Ice due to the incredible geological activity that is seen around the country every day. Because of its unique position between two continental plates, earthquakes, volcanoes, geysers and lava fields define the natural character of this constantly changing nation. It only makes sense then that geothermal energy accounts for about a quarter of all power used in Iceland and meets the heating and hot water requirements of approximately 87% of all buildings in Iceland.

Svartsengi geothermal plant
In the mid 1970s, the Svartsengi geothermal plant was built about 20 minutes from the international airport at Keflavik and 40 minutes from the capital city of Reykjavik. The process of generating heat from this plant is fairly simple. Superheated water is vented from the ground near a lava flow and used to run turbines that generate electricity. After going through the turbines, the steam and hot water passes through a heat exchanger to provide heat for a municipal hot water heating system. What happens next to the water though has become a multimillion industry in its own right.
After the water is used to provide heat for the water system, it is fed into what we know today as the Blue Lagoon. The water from the Blue Lagoon is a direct result of the geothermal plant found right next door.
Visitors to the massive spa complex may not even see the nearby power plant, much less realize that it is the source of the Blue Lagoon magic. It’s cleverly hidden just out of sight and unless you look, you probably won’t notice it and if you do, it probably won’t make an impact.

So when National Geographic called the Blue Lagoon a wonder of the world, was it completely accurate? Mostly. Yes, the water that feeds the Blue Lagoon is naturally occurring, but I don’t think the spa is natural in the way most visitors believe it is. There wasn’t an existing pool that someone found and decided to make into a tourist attraction. A pool was formed, quite unnaturally, and transformed over the years into the mega-business it has become.
But that doesn’t mean the Blue Lagoon doesn’t have certain benefits and it doesn’t mean it’s not worth a visit. The warm waters are rich in minerals like silica and sulfur and bathing in the Blue Lagoon is reputed to help some people suffering from skin diseases such as psoriasis. The water temperature in the bathing and swimming area of the lagoon averages 98–102 °F, the perfect temperature for soaking. Having been there myself, I can attest that it is indeed a fun experience. The waters are warm and pleasantly murky and the landscape surrounding the spa is beautiful and otherworldly. But it’s also a machine.
When you first arrive, usually as part of an organized tour, you’re fed through the intake center where you are confronted with a variety of options.
Basic Fees:
- Entrance fee for adults – 30 Euros (includes locker rental)
- Towel – 5 Euros
- Bathing suit rental – 5 Euros
- Bath robe rental – 9 Euros

After paying at least 30 Euros, and usually more, then it’s time to join the herds in the changing rooms (leave modesty outside) before proceeding to the event itself. I’ve been to quite a few of these spas recently and there’s no doubt that the Blue Lagoon was the best managed. Guests are given electronic bracelets that serve as locks for lockers as well as a virtual charge card for any food or drinks you may purchase while you take the waters. Like I said, it’s a machine, but a beneficent one. They are intent on making money, yes, but they are also intent in providing the guest with a great experience. And that’s what I had, even after spending 5 Euro for a towel and $20 for a sandwich and a soda.
While the Blue Lagoon isn’t really a natural wonder, not in the purest sense, it is a natural-ish quasi-wonder and after visiting, I understand why every tourist feels drawn to the site. Whether by design or accident, taking the waters at the Blue Lagoon, enveloped by aqua blue water and surrounded by immense lava fields is truly an experience you will find nowhere else in the world.

Who am I? I am a typical Gen-Xer and recovering cubicle-dweller who has a passion for all things travel. My site brings a unique perspective that is hard to find online. I am not a backpacker, nor am I...





This surely sounds like an awesome place to be! Natural or not, I am super excited to be there sometime in life…
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Accuracy and history are always interesting to me, so thanks very much for sharing this. Also glad to hear that, despite the high prices, it is a system that works well for the visitor.
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Matt Long Reply:
March 5th, 2012 at 4:11 pm
Yeah, it’s a great system.Better organized than any other I’ve been to. And it is a lot of fun, relaxing, etc., but I also want to make it clear it’s not the natural wonder people think it is. But there’s nothing wrong with that.
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Maria Alexandra @latinAbroad Reply:
March 16th, 2012 at 8:28 am
Couldn’t agree with you more Matt! Amazingly informative post. I was there Dec 2012 and loved it, but would not go again (sp after I was told by many Icelanders of the many other FREE thermal pools around the country) =D
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Still cool. Been there and loved it! I’d go back!
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Well we just learned something new! Regardless of whether it’s a true natural wonder or not, you can bet we’ll be making a stop whenever we make it to Iceland. Your pictures were encouraging enough!
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A great informative piece! I realised that it wasn’t totally ‘natural’ when I went, but I have to say that of all the spas I’ve visited and facials I’ve had, this one had the best results – I felt clean for literally weeks afterwards and would almost go back to Iceland just for another dip!
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Matt Long Reply:
May 11th, 2012 at 9:52 am
Yes, it is a fun place
Glad you love it so much
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I was there twice, the second time during a layover and the airline arranged the excursion. The silica mud was wonderful for my skin, and the costs were comparable to getting some fancy spa treatments in NYC. It is indeed otherworldly, and I’d recommend it to anyone.
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That’s a really informative post. Is that information readily available on signage or documentation they hand out, or they prefer to keep it all on the down-low?
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Matt Long Reply:
December 5th, 2012 at 5:16 pm
Well no they don’t advertise it, but it’s not exactly a secret either. You just need to be a little curious to find out
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