So the Blue Lagoon is most certainly a tourist trap, but one that I happily stepped right into, plastic iPhone protector in hand! How could I pass up taking a selfie in a geothermal glorified bathtub?! The Blue Lagoon is another of Iceland's beautiful natural wonders, as the salt water is heated entirely by the earth and filled with good-for-you minerals like silica and all kinds of other stuff. The bright blue hue is quite stunning, although I've heard it's perhaps not natural and instead a result of nuclear plant activity nearby. But who cares right?! Like I said, a complete tourist trap that I would happily wade right back into for a second dip.