Gjáin Waterfall Oasis Iceland: Complete Visitor Guide

A hidden lush paradise in Þjórsárdalur valley with multiple cascades through mossy lava formations — Iceland's 'Garden of Eden' and a Game of Thrones filming location.

Last reviewed February 1, 2026By the Iceland.org Travel TeamEditorial policy
Region
South Iceland
Hidden gem. Rough road access; slippery moss-covered rocks.
A hidden lush oasis in Þjórsárdalur valley, sometimes called Iceland's 'Garden of Eden.' Multiple small waterfalls cascade through mossy lava formations. Used as a Game of Thrones filming location (Children of the Forest). Near the Viking farmstead Stöng.
Sources and last reviewed
Last reviewed: 2026-02-01

This page is for trip planning, not emergency guidance. Moss-covered rocks at Gjáin are extremely slippery—wear sturdy boots and take care near water. Check road conditions before driving.

Pages are reviewed for practical usefulness, source quality, and volatile claims before publication.

Best for
Lush moss + cascades

Multiple waterfalls in a magical moss-covered setting.

Access
Rough road + walk

Rough road access; short walk to the oasis. Slippery rocks.

Pro tip
Visit Stöng too

Combine with the nearby Viking farmstead for a half-day trip.

What to Expect at Gjáin

  • Multiple small waterfalls cascading through lava formations
  • Lush moss covering rocks and terrain—incredibly green in summer
  • Slippery surfaces everywhere—sturdy boots essential

How to Get to Gjáin

  • Located in Þjórsárdalur valley in South Iceland
  • Turn off Route 32 onto a gravel road toward Stöng
  • Rough road—a capable vehicle is recommended
  • Short walk from the parking area to the oasis

Best Time to Visit Gjáin

  • June to September for the best access and greenest moss
  • Summer offers the longest daylight for exploring
  • Road may be impassable in winter and early spring
  • Weekday visits tend to be less crowded
  • Check road conditions before driving—gravel road can be rough

Planning help

Gjáin FAQs

Quick answers with safety notes where it matters.