<P> A small experimental facility is still visible near the plant, where the engineers made decantation tests to evaluate the speed of mineral deposition, which is clearly a limiting factor both to the plant's rentability and sustainability . Hence, geothermal energy exploitation at this location is not without environmental impact . </P> <P> The Blue Lagoon was used as the pit stop for the first leg of The Amazing Race 6 . The Blue Lagoon was used for the thermal spa scenes in the filming of Hostel: Part II . It was also shown in the Incubus documentary Look Alive, when the band visited Iceland, in the fifth cycle of Britain's Next Top Model which used as photoshoot location as well as Keeping up with the Kardashians . </P> <P> The Blue Lagoon is situated close to the world's first renewable methanol plant, which uses Carbon Recycling International's carbon dioxide to methanol fuel process . </P> <P> In 1976, a pool formed at the site from the waste water of the geothermal power plant that had just been built there . In 1981, people started bathing in it after its supposed healing powers were popularized . In 1992, the Blue Lagoon company was established, and the bathing facility was opened for the public . </P>

How deep is the blue lagoon in iceland