In Haukadalur Geothermal Area is possible to see some of the most famous sights of the island: the geysers and other geothermal features which have developed on Laugarfjall rhyolitic dome.
Blesi is a hot spring that consists of two large basins. The first basin contains boiling colorless water with a high silica content that empties out into the second basin. As the water moves from the first basin into the second, it cools and turns in azure blue color.
