blue-green algae, despite the water not being artificially disinfected it contains no fecal bacteria, environmental bacteria, fungi, or plants. Baths Shortly after the opening of the Svartsengi power plant in 1976, the runoff water had made pools. In 1981, a psoriasis patient bathed in the water and noted that the water alleviated his symptoms and the lagoon subsequently became popular. Bathing facilities opened in 1987 and in 1992 the Blue Lagoon company was established. Studies made in the 1990s confirmed that the lagoon had a beneficial effect on the skin disease psoriasis. A psoriasis clinic was opened in 1994 and in 1995, the Blue Lagoon company began marketing skin products containing silica, algae, and salt. The lagoon recorded 1.3 million visitors in 2017, up from 919,000 visitors in 2015. The company had a revenue of €102 million and a profit of €31 million in 2017. It has over 600 employees. The entry fee is from $64. See also Balneotherapy References External links Information from Reykjavik's tourist organization Blue Lagoon panoramic virtual tour Blue Lagoon Discover Iceland Tours Hot springs of Iceland Spas Tourist attractions in Iceland Reykjanes