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.

Updated February 1, 2026By the Iceland.org Travel Team
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.
Safety + sourcing
Last updated: 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.

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.