The Blue Lagoon is probably one of the most famous destinations in Iceland so we had to experience it. The lagoon is runoff from a nearby geothermal power plant (doesn't sound so romantic now, does it?). The water is rich in sulfur and silica minerals that supposedly help heal many types of skin diseases.
That being said, here's my honest review: I didn't love the Blue Lagoon. It was definitely interesting to see but the whole experience was tainted due to the number of people at this place. In all the photos we were seeing online, the Lagoon looks peaceful and serene but really we felt like cattle being herded from one place to the next. Of course, this is to accommodate the drones of people that want to see this place but it takes away from the natural wonder of the lagoon. Also, if you're not into bathing in lukewarm water for 4+ hours with hundreds of strangers, then this isn't the place for you. If you do skip out, here are some photos from our experience. ☺