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South Iceland · Iceland

Reykjadalur

Reykjadalur — 'Steam Valley' — is a geothermal valley accessible by a 3 km hiking trail where you can bathe in a natural hot river running through the hillside above the town of Hveragerði.

About Reykjadalur

Reykjadalur — 'Steam Valley' — is a geothermal valley accessible by a 3 km hiking trail where you can bathe in a natural hot river running through the hillside above the town of Hveragerði.

History & Background

The hot river in Reykjadalur is one of Iceland's most unusual natural bathing spots — a natural river with geothermal springs feeding it at varying temperatures, allowing bathers to find their preferred spot. The valley was severely damaged in a 2008 earthquake that hit the Hveragerði area with a 6.3 magnitude tremor, opening new fissures and dramatically changing the geothermal activity in the valley.

Key Facts

  • Name means 'Steam Valley'
  • Natural hot river for bathing — no facilities
  • 3 km hiking trail each way from Hveragerði
  • Water temperature varies — hottest near the springs
  • Valley dramatically reshaped by the 2008 South Iceland earthquake
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Reykjadalur — Tours & Guide (2026) | GoIceTravel