1. Blue Lagoon Geothermal Spa, Grindavik, Iceland
Located in a lava field near Grindavik on the Reykjanes Peninsula, the Blue Lagoon is undoubtedly one of the most popular geothermal spas in the world that’s on every traveller’s bucket list. You’ve most probably come across a picture on social media of this ethereal blue paradise but did you know that the lagoon is actually man-made? Drawn to the surface through geothermal extraction wells, the water that emerges into the lagoon is enriched with bioactive elements including silica, algae and minerals which endow it with healing, rejuvenating and nourishing abilities.