4.5
(850)
6,324
hikers
25
hikes
Dog friendly hiking trails around Greenlee Lough are set within a landscape shaped by the Great Whin Sill, featuring a lough surrounded by wetlands and reed beds. The area includes diverse habitats such as meadows and woodlands, with prominent crags and hills. Many routes incorporate sections of Hadrian's Wall, blending natural features with historical landmarks.
Last updated: June 29, 2026
4.8
(19)
244
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.6
(25)
166
hikers
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

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5.0
(4)
34
hikers
10.6km
02:55
170m
170m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(2)
33
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.3
(3)
10
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Crag Lough was formed by glaciers during the last ice age and is one of the four Roman Wall lakes. The other three are Broomlee, Greenlee and Halleypike.
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Steel Rigg is one of the most beautiful viewpoints along the high, central part of Hadrian's Wall.
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The Roman milecastle 39 is known as Castle Nick, because it lies in a niche in the hillside. The site was excavated between 1908 and 1911 and re-excavated between 1982 and 1987. In the south-east corner there was a stone oven and in the south-west corner a rectangular building with a sunken floor, associated with Roman finds. The milecastle appears to have been occupied until the end of the 4th century. In the 18th century, a dairy may have been built in the west corner. (Northumberland National Park)
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The Sill is the perfect place to explore Northumberland National Park and a fantastic location to connect with nature and the unique and special landscapes of the national park. There are interesting exhibitions, affordable parking, a café, toilets, etc. You can also enjoy a spectacular view from the rooftop terrace. It is a good starting point for walks to Hadrian's Wall.
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Benches, coffee and snacks, toilets available - see photos
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This is a lovely section of woodland path just above Crag Lough. It is not the sort of trail you expect to see along Hadrian's Wall, but it is a super nice section. It is a pity it's not a few kilometres longer.
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Milecastle 39 is a super scenic and impressive place. It is a well-preserved Milecastle on Hadrian’s Wall. It is immediately to the west of the Sycamore Gap and is just one of many outstanding features on this stretch of wall.
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The Sycamore Gap tree was an iconic tree that was over 200 years old and located in a dramatic dip along Hadrian's Wall. It was made famous in the film Robin Hood, which featured a scene where Kevin Costner and Morgan Freeman acted out a scene at this exact location. Unfortunately it could not stand up to a malignant, vengeful human with a chainsaw.
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There are over 25 dog-friendly hiking trails around Greenlee Lough, catering to various fitness levels. You'll find a good mix of easy, moderate, and challenging routes to explore with your canine companion.
The trails around Greenlee Lough offer a diverse range of terrain. You can expect well-maintained footpaths, sections of boardwalk through wetlands, lush meadows, and more rugged paths, especially where routes incorporate the Great Whin Sill or Hadrian's Wall. Appropriate footwear is recommended for both you and your dog.
Yes, Greenlee Lough offers several easy dog-friendly walks. For instance, the Steel Rigg and Hadrian's Wall – Sycamore Gap loop from Milecastle 40 is a shorter, easier option, perfect for a relaxed stroll with your dog. The Greenlee Lough Circular Walk, while not listed in our specific routes, is also known to be a moderately easy option with a boardwalk section.
Absolutely. Many of the dog-friendly trails in the area are circular, allowing you to start and finish at the same point. Examples include the Crag Lough – Sycamore Gap loop from Hadrian's Wall, which offers stunning views and a varied landscape.
Hiking with your dog around Greenlee Lough means you'll encounter a blend of natural beauty and historical significance. You can expect to see the tranquil Greenlee Lough itself, sections of the iconic Hadrian's Wall, the dramatic Great Whin Sill, and potentially landmarks like Sycamore Gap. The Greenlee Nature Reserve and a bird hide also offer opportunities to observe local wildlife.
Greenlee Lough is beautiful year-round, but each season offers a different experience. Late spring and summer (especially late June to early July for vibrant meadows) are popular for pleasant weather and abundant wildlife. Autumn brings stunning colours. Winter can be picturesque but requires preparation for colder, potentially wet conditions. Always check weather forecasts before heading out.
Yes, for those seeking a more demanding adventure with their dog, there are longer and more challenging routes. The Walltown Quarry Nature Reserve – Steel Rigg and Hadrian's Wall loop from Vindolanda Fort is a difficult, longer trail that will test your endurance while offering expansive views.
The Greenlee Lough area is highly rated by the komoot community, with an average score of 4.5 stars from over 800 reviews. Hikers often praise the stunning natural beauty, the historical significance of Hadrian's Wall, and the peaceful atmosphere, making it a fantastic destination for walks with dogs.
As Greenlee Lough is part of Northumberland National Park and includes a nature reserve, it's important to keep dogs under close control, especially near livestock or wildlife. Some areas may require dogs to be on a lead. Always follow local signage and be mindful of ground-nesting birds during breeding season. Remember to bag and bin your dog's waste.
Certainly. Many moderate trails seamlessly blend the natural beauty of Greenlee Lough with the historical significance of Hadrian's Wall. The Sycamore Gap (Robin Hood Tree) – Hadrian's Wall loop from Vindolanda Fort is a great example, offering a good workout and iconic sights.
The Greenlee Lough Circular Walk is a popular route. You can find more detailed information, including a downloadable leaflet, on the Northumberland National Park website: Greenlee Lough Circular Walk.


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