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The Gloup: Orkney’s Spectacular Collapsed Sea Cave and Coastal Reserve

Discover The Gloup, Orkney’s breathtaking collapsed sea cave within Mull Head Nature Reserve, where wild seas meet ancient history and scenic coastal trails.

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The Gloup is a dramatic collapsed sea cave on Mainland, Orkney, featuring an 80-foot deep chasm separated from the North Sea by a narrow land bridge. Part of the Mull Head Nature Reserve, it offers stunning coastal views, rich wildlife, and extensive walking trails through coastal grasslands and sea cliffs, making it a top destination for nature lovers and hikers.

A brief summary to The Gloup

  • Mainland,, Orkney, Orkney, GB
  • Duration: 1 to 3 hours
  • Free
  • Environment icon Outdoor
  • Mobile reception: 3 out of 5
  • Monday 12 am-12 am
  • Tuesday 12 am-12 am
  • Wednesday 12 am-12 am
  • Thursday 12 am-12 am
  • Friday 12 am-12 am
  • Saturday 12 am-12 am
  • Sunday 12 am-12 am

Local tips

  • Wear sturdy footwear and be prepared for uneven, sometimes slippery terrain, especially near the steep paths to the Brough of Deerness.
  • Exercise caution around the unfenced edges of The Gloup to ensure safety while enjoying the dramatic views.
  • Visit the nearby interpretation centre for insights into the natural and cultural history of the area.
  • Consider a boat trip to explore The Gloup from the sea during calm weather; local boat hire is available through Kirkwall.
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Getting There

  • Car

    Driving from Kirkwall to The Gloup takes approximately 30 to 40 minutes via the A961 and B9053 roads. Parking is available at a small car park near the site, but spaces are limited during peak seasons. No parking fees apply.

  • Bus

    Local bus services run from Kirkwall to Deerness several times daily, with a journey time of around 45 to 60 minutes. From the Deerness stop, a moderate 15-minute walk on uneven terrain leads to The Gloup. Bus tickets cost approximately £3 to £5 one way.

  • Walking

    For the adventurous, a hiking route from the nearby village of Deerness to The Gloup takes about 30 minutes over varied coastal paths. The terrain is uneven and can be slippery when wet, so suitable footwear and physical fitness are recommended.

The Gloup location weather suitability

  • Weather icon Any Weather
  • Weather icon Rain / Wet Weather
  • Weather icon Clear Skies
  • Weather icon Windy Conditions
  • Weather icon Mild Temperatures

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Discover more about The Gloup

A Natural Marvel Carved by the Sea

The Gloup is one of Orkney’s most striking natural features—a collapsed sea cave that plunges approximately 80 feet deep and stretches about 40 yards in length. This dramatic chasm is separated from the open North Sea by a narrow land bridge roughly 80 yards wide. The sea still roars through the blowhole at the base of the chasm, creating a powerful and evocative soundscape. Its name derives from the Old Norse word "gluppa," meaning chasm, reflecting the area's Viking heritage.

Part of the Mull Head Nature Reserve

The Gloup lies within the Mull Head Nature Reserve, a protected area encompassing over 200 acres of coastal grassland, heath, and rugged sea cliffs. This reserve is a haven for birdwatchers and nature enthusiasts, with diverse flora and fauna thriving in the varied habitats. The reserve’s network of well-maintained paths invites visitors to explore the scenic coastline, offering panoramic views of the sea and surrounding landscape.

Walking Trails and Nearby Historic Sites

Visitors can enjoy several walking routes around the Gloup, including a popular round-trip trail that passes the Covenanters Memorial. The nearby Brough of Deerness, accessible via steep, rock-cut steps, features the remains of a Norse settlement and church, adding a rich historical dimension to the natural beauty. The terrain can be steep and prone to erosion, so sturdy footwear and physical fitness are recommended.

Visitor Facilities and Safety Considerations

A small car park with public toilets and an interpretation centre is located near the Gloup, providing useful information about the site and the wider Mull Head Reserve. The Gloup itself is unfenced, so visitors must exercise great caution near the edges. It is also possible to explore the chasm from the sea in a small boat, with boat hire details available locally. The area’s wild beauty demands respect and care to preserve its fragile environment.

Ecological and Cultural Significance

The Gloup and Mull Head Reserve embody the unique interplay of natural forces and human history in Orkney. The reserve’s coastal grasslands support rare plant species and seabirds, while the Norse archaeological sites nearby connect visitors to the islands’ rich cultural past. This blend of ecological diversity and heritage makes the Gloup a compelling destination for those interested in both nature and history.

Seasonal Appeal and Visitor Experience

The site is accessible year-round, with each season offering a different perspective—from the vibrant greens of summer to the dramatic, moody skies of winter. The sound of crashing waves and the sight of seabirds soaring above create an immersive sensory experience. Whether you are a dedicated hiker, a birdwatcher, or a history buff, the Gloup offers a memorable encounter with Orkney’s wild coast.

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