geysir

Geysir is a geothermal area in the Haukadalur valley in southwestern Iceland. The name Geysir gave rise to the generic term geyser in many languages, reflecting the prominence of this field. The area’s principal vent, the Great Geysir, has erupted intermittently for centuries but has been largely dormant since the early 20th century. When it does erupt, it can shoot boiling water high into the air; historical accounts describe heights of up to about 70 meters (230 feet).

Nearby Strokkur provides the most reliable eruptions in the field, typically shooting water and steam to heights of around 20 meters (66 feet) every 6–10 minutes. This regular activity makes Strokkur a focal point for visitors to the site.

Geologically, Geysir sits above a geothermal system heated by heat from magma near the surface. Groundwater descends, is heated, and, under pressure, erupts as a fountain of boiling water and steam. The field includes silica-rich sinter deposits and a variety of other hot springs, vents, and fumaroles.

Location and access: The Geysir area is part of Iceland’s Golden Circle circuit in the southwest, near the Gullfoss waterfall and not far from Þingvellir. It is a major tourist destination and is managed under safety and environmental guidelines. Visitors are advised to stay on marked paths, as ground around geothermal features can be unstable and hot.