Horseback riding in Reykjavík Green Belt

Reykjavík Green Belt

The Reykjavík Green Belt stretches across the capital's southeastern edge, where lava fields give way to mountains and wilderness. This is where locals come to ski in winter, hike in summer, and escape without really leaving. Heiðmörk Nature Reserve anchors the area with trails winding through volcanic formations and small forests. Further out, you'll find the Bláfjöll ski area and the lava tube caves beneath those mountains. The Hellisheiði Geothermal Exhibition shows how Iceland transforms underground heat into energy for the capital and is worth the detour if you're heading south. On winter nights when conditions align, the northern lights appear across the darkness here. Horse farms offer rides through the backcountry, quad bikes kick up dust on volcanic trails, and anglers find peace at quiet lakes. 

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Things to do and places to wander

Heiðmörk

Heiðmörk Nature Escape

Heiðmörk is like Reykjavík’s backyard wilderness - a wide stretch of forest, lava fields, and quiet trails just minutes from the city. Over the past decades, more than four million trees have been planted here, and today you can wander through woodlands growing in the middle of ancient volcanic terrain. If you enjoy birdlife, you’re in luck: around 60 wild species have been recorded in the area, especially around lakes like Elliðavatn. Hike or bike the well-marked trails, go fishing (with a permit) or ride horseback across lava landscapes. One of the most striking sights is Rauðhólar, the "Red Hills," formed about 5,000 years ago when lava met water and exploded into pseudocraters that now glow rust-red from oxidized iron. And in winter, when the sky is clear and the city glow fades behind you, Heiðmörk becomes a great place to look for the northern lights.

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Skiing in Bláfjöll

High Ground

Southeast of Reykjavík, Bláfjöll ("Blue Mountains") is best known for its ski area, one of Iceland's main winter sports destinations. But the landscape offers more than slopes. In summer, marked hiking trails wind through moss-covered lava fields with wide views across the volcanic plateau and surrounding peninsula. Below ground lies Leiðarendi, a lava tube formed by flowing magma thousands of years ago. Guided tours take you into the cave to see its rock formations and learn how these volcanic passages were created. 

Skiing in Reykjavík
Geothermal Exhibition

Volcano Power

About 20 minutes from Reykjavík on the road toward the South Coast, Hellisheiði is one of the world's largest geothermal power stations. The on-site Geothermal Exhibition explains how Iceland uses underground geothermal energy to generate electricity and hot water for the capital region. Interactive displays and audio guides walk you through geothermal energy and local geology, and projects like Carbfix, which stores CO₂ by turning it into stone underground. The immersive Agndofa art installation gives you a clearer picture of how Iceland quite literally runs on nature. There's also a café and shop stocked with local products.  

Safari Tours

Riding & Hiking the Volcanic Backcountry

Southeast of Reykjavík, the Green Belt opens into wide lava fields and quiet backcountry shaped by volcanic forces. Horse farms offer guided rides across moss-covered terrain and along peaceful lakes, where the steady pace of the Icelandic horse connects you to centuries of rural tradition. Marked hiking trails weave through forests and over open ridges, offering views of the capital and surrounding mountains. For a faster pace, guided ATV tours follow rugged gravel tracks across black lava landscapes, reaching panoramic viewpoints that reveal the contrast between raw nature and the nearby city.
 

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How to get to the Green Belt

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By Bus 

Public transportation is limited, so it is recommended to travel by car or an organised group tour.

It is possible to take the number 5 bus to Selvað, and walk from there to Heiðmörk. 

 

Reykjavík City Card makes travel cheaper with unlimited bus rides across the greater Reykjavík area. Choose between 24, 48 or 72 consecutive hours from the moment you activate your card.   

By Car

Parking areas are typically located near the main attractions, providing easy access to walking trails and points of interest.

Tiptoe top tips

Top Tips

  •  Stay within the designated buggy tracks to protect the mossy lava from damage. Embrace the mud. That’s half the fun out here.
  • Unique to the Icelandic horse, the tölt is an exceptionally smooth four-beat gait. Let the horse set the pace and relax your posture. It feels best when you simply go with the flow. 
  • In summer, free-roaming sheep wander through Heiðmörk. Keep an eye out and give them space to graze peacefully.
     
  • In Bláfjöll, check the weather and wind warnings before heading up. If you´re there to ski, share the slopes generously. 
  • Ask staff at the Geothermal Exhibition about how Reykjavík pipes hot water from the lava fields; it’s the best crash course in local sustainability.
  • Stay present even if the northern lights are faint. On some nights it’s the stillness that makes the magic.