We wrapped up our Iceland trip by soaking at the Blue Lagoon geothermal spa before heading straight to the airport. Blue Lagoon is a man made lagoon that has pools of water heated by the lava flow underground. The milky white water is rich in minerals and said to have healing properties. The sun was shining and it was almost blinding as it reflected off the white water, steam, and rocks. We soaked for hours among heads covered in white silica mud masks, in between breaks inside a steam room cave. It was the perfect way to relax after days of exploring and before a long flight home.
Blue Lagoon well worth the money and definitely a spot you don't want to miss in Iceland, even if you are passing through Iceland for only a few hours (the spa is only 20 minutes from the airport).