Strokkur, Geyser in Haukadalur Valley, Iceland.
Strokkur is a geyser in the Haukadalur Valley within the Bláskógabyggð municipality of Iceland, sending columns of water up to 40 meters (130 feet) into the air. Eruptions repeat every six to ten minutes as underground geothermal water shoots to the surface under pressure.
First documented in 1789, the geyser became more active after an earthquake cleared its underground channel. Another seismic event in the early 20th century temporarily blocked the opening until the flow was restored.
The geyser forms part of the Golden Circle route, drawing visitors to experience regular natural water eruptions alongside other geothermal features.
Marked viewing areas around the geothermal field let visitors watch eruptions from a safe distance, with signs explaining the activity. The site remains open year-round, and paved paths stay accessible even in changing weather.
The water originates from the Langjökull glacier and travels through underground channels before heating and forcing its way upward. The blue dome at the surface bulges visibly just before each eruption.
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