Carnethy Hill, Threipmuir Reservoir & Glencorse Reservoir loop from Flotterstone
Carnethy Hill, Threipmuir Reservoir & Glencorse Reservoir loop from Flotterstone
4.7
(16)
73
hikers
06:33
20.6km
570m
Hiking
Embark on a difficult hike through the Pentland Hills, covering 12.8 miles (20.6 km) with a significant elevation gain of 1885 feet (574 metres). This challenging route typically takes around 6 hours and 33 minutes to complete. You'll experience a diverse landscape, from the open moorland to the tranquil waters of Glencorse Reservoir. The trail offers spectacular views, particularly from higher points like Carnethy Hill, where you can gaze across the Midlothian plains. Expect a mix of terrain as you traverse this scenic loop.
Your journey begins conveniently at Flotterstone, where you'll find a visitor centre and café to prepare for your hike. Be mindful that some river crossings along the route can become quite challenging, especially during colder, icy winter conditions. The varied terrain, ranging from firm gravel paths to potentially muddy sections, means that appropriate footwear is essential for your comfort and safety. Plan your visit with these conditions in mind to fully enjoy the experience.
This loop showcases the rich natural tapestry of the Pentland Hills, weaving together farmed land, expansive moorland, and significant water bodies. You will pass by the historic Threipmuir Reservoir and trace the picturesque shores of Glencorse Reservoir. The changing perspectives, from the broad vistas atop Turnhouse Hill to the views back from Carnethy Hill, highlight the unique geological and environmental features of this regional park.
Last updated: April 23, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
45 m
Highlight • Rest Area
Tip by
2.55 km
Highlight • Viewpoint
Tip by
3.87 km
Highlight • Natural Monument
Tip by
6.32 km
Highlight • Natural Monument
Tip by
11.8 km
Highlight • Viewpoint
Tip by
13.5 km
Highlight • Structure
Tip by
18.0 km
Highlight • Lake
Tip by
20.6 km
End point
Parking
Way Types & Surfaces
Way Types
7.24 km
6.23 km
4.14 km
3.01 km
Surfaces
7.57 km
4.73 km
4.17 km
2.94 km
869 m
312 m
< 100 m
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Elevation
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Weather
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Saturday 18 July
22°C
6°C
0 %
Additional weather tips
Max wind speed: 15.0 km/h
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This route was planned by komoot.
The loop typically starts from the Flotterstone Visitor Centre & Café in the Pentland Hills Regional Park. There is a car park available at Flotterstone, but it can fill up quickly, especially on weekends. Arriving early is recommended to secure a spot.
This is considered a difficult hike, requiring very good fitness and sure-footedness. While sections along the reservoirs offer easier terrain, the ascent of Carnethy Hill involves continuous, moderate gradients and sustained ascents, making it challenging.
The route features a highly varied terrain. You'll encounter grassy tracks and gravelly paths leading up to Carnethy Hill. After the descent, the trail transitions to a relaxing stroll along the edges of Threipmuir Reservoir and Glencorse Reservoir, including sections of tarmac road. Other parts may include firm gravel tracks, hill paths, grassy slopes, and occasional rough or boggier sections on higher moorland, as well as single track and muddy areas.
Yes, dogs are generally allowed on trails within the Pentland Hills Regional Park. However, it's crucial to keep dogs under close control, especially around livestock and wildlife, and to follow any local signage regarding leashing. Please remember to clean up after your dog.
Key highlights include the ascent of Carnethy Hill (the second-highest peak in the Pentlands), offering spectacular views. You'll also pass by Turnhouse Hill, the picturesque Threipmuir Reservoir, and the historically significant Glencorse Reservoir. The Logan Burn Waterfall is another notable feature.
Spring, summer, and early autumn generally offer the best conditions for this hike, with milder weather and longer daylight hours. Be prepared for potentially muddy sections, especially after rain. Winter hiking is possible but requires appropriate gear due to potentially icy conditions on higher ground and sketchy river crossings.
No, there are no specific permits or entrance fees required to access the trails within the Pentland Hills Regional Park, including this loop. However, standard countryside access codes apply, and visitors are encouraged to respect the natural environment and local regulations.
Yes, this route incorporates sections of several other established trails. You will find yourself on parts of the Bavelaw-Flotterstone, Capital Trail, and Pentland Way (Cross Borders Drove Road to Glencorse Reservoir), among others.
The loop offers spectacular and diverse views. From higher elevations, you can see the Midlothian plains stretching towards the Lammermuir and Moorfoot Hills. There are clear vistas of Glencorse Reservoir from Turnhouse Hill, and views back towards Turnhouse Hill from Carnethy Hill. The route also showcases the rich mosaic of farmed land, heather moorland, reservoirs, and hills characteristic of the Pentland Hills.
The starting point at Flotterstone Visitor Centre & Café offers convenient facilities, including a café for refreshments and toilets. There are no other dedicated facilities directly on the trail itself, so it's advisable to carry sufficient water and snacks.
Given the varied terrain and potential for changing weather, wear sturdy hiking boots with good ankle support. Layered clothing is recommended, including waterproof and windproof outer layers. Bring plenty of water, snacks, a map or GPS device, and sun protection. Trekking poles can be helpful for the ascents and descents, especially on rougher sections.
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