The Blue Lagoon is one of National Geographic's natural wonders of the world. It is heated by geothermal heat from beneath the ground. It has expanded since last time I visited, and more expansion is planned, including hotels and other features. We took the opportunity to explore the various lagoons, silica mud smeared on our faces, and also visited the bar. The wristbands bamboozled a few students. We had over an hour to wallow in the water and float looking up at the sky before heading to the hotel to check in.
Image taken on a previous visit by me