Stuðlagil

Stuðlagil (Icelandic pronunciation: [ˈstʏðlaˌcɪːl̥]; also transliterated as Studlagil) is a ravine in Jökuldalur [is] [ˈjœːkʏlˌtaːlʏr̥] in the municipality of Múlaþing, in the Eastern Region of Iceland.

It is known for its columnar basalt rock formations and the blue-green water that runs through it.

It became an unexpected tourist sensation[1][2] after being shown in a WOW air brochure in 2017.

[3] The rock formation is 30 meters (98 ft) tall.

[4] The water level decreased by 7 to 8 meters (23 to 26 ft) after the opening of the Kárahnjúkar Hydropower Plant in 2009.