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Routes
Mountain biking trails
United Kingdom
Scotland
West Scotland
Arrochar, Tarbet And Ardlui

Glen Loin Loop

Moderate

4.0

(6)

54

riders

Glen Loin Loop

01:43

16.9km

380m

Mountain biking

Experience challenging mountain biking on the moderate 10.5-mile Glen Loin Loop in Loch Lomond & The Trossachs National Park, featuring stun

Last updated: February 26, 2026

Tips

Includes a segment in which cycling is not permitted

After 15.8 km for 266 m

Waypoints

A

Start point

Parking

Get Directions

1

56 m

Loch Long

Highlight • Natural

Loch Long is a body of water in Argyll and Bute, Scotland. The Sea Loch extends from the Firth of Clyde at its southwestern end. It measures approximately 20 miles …

Tip by

2

1.33 km

View of Arrochar and Loch Long

Highlight • Settlement

Fantastic views of Arrochar, heading to Succoth.

Tip by

3

4.84 km

Glen Loin Trail

Highlight • Forest

Smooth fire roads.

Tip by

4

7.69 km

Rocky, heading to smooth gravel fire roads.

Tip by

5

10.3 km

View of Loch Lomond

Highlight • Viewpoint

Fantastic view to Loch Lomond

Tip by

6

14.6 km

Glen Loin

Highlight • Forest

The Loch Lomond and Cowal way. Heading for hike-a-bike. Rough ground.

Tip by

B

16.9 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

15.5 km

931 m

353 m

< 100 m

< 100 m

Surfaces

8.48 km

6.81 km

928 m

389 m

247 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (320 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Wednesday 6 May

12°C

6°C

59 %

Additional weather tips

Max wind speed: 20.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How long does it typically take to complete the Glen Loin Loop?

The Glen Loin Loop is a mountain biking route that typically takes around 1 hour and 43 minutes to complete. This duration is for the 16.9 km (10.5 miles) loop, but actual times can vary based on your fitness level and how often you stop to enjoy the views.

What kind of terrain can I expect on the Glen Loin Loop?

The terrain on this loop is diverse and challenging. You'll encounter a mix of surfaces, including steady climbs on fire roads with expansive views, and significant sections of 'quality' singletrack through the forest. Some singletrack parts can be technical and rough, especially the Glen Loin path which is also popular with walkers and may be eroded. Expect steep climbs and descents, including a sweeping 3.6 km descent after a stream crossing.

Is the Glen Loin Loop suitable for beginners?

No, the Glen Loin Loop is generally considered a challenging route, graded as 'moderate' by komoot but often described as 'hard' by local riders. It requires a good level of fitness and advanced mountain biking skills due to its demanding climbs, technical singletrack, and steep descents. It's not recommended for beginners.

What are the notable viewpoints or natural features along the route?

The loop offers breathtaking mountain scenery and views of the Arrochar Alps. You'll pass by Loch Long and enjoy a View of Arrochar and Loch Long. Other highlights include the Glen Loin Trail itself, a Stream Crossing in Loch Lomond and The Trossachs National Park, and a View of Loch Lomond. The entire Glen Loin area is known for its rugged beauty.

Where can I park to access the Glen Loin Loop?

While specific parking details for the Glen Loin Loop are not provided, the trail is situated in the Arrochar Alps within Loch Lomond & The Trossachs National Park. You would typically look for parking in nearby settlements like Arrochar, which serves as a common access point for trails in the area.

What is the best time of year to mountain bike the Glen Loin Loop?

The best time to ride this loop is generally during the drier months, from late spring to early autumn (May to September), when weather conditions are more stable and the trails are less likely to be muddy or icy. Always check the local weather forecast before heading out, as conditions in the Scottish Highlands can change rapidly.

Is the Glen Loin Loop dog-friendly?

Yes, the Glen Loin Loop is generally dog-friendly. However, as it's within Loch Lomond & The Trossachs National Park and passes through areas with livestock and wildlife, it's crucial to keep dogs under close control, preferably on a lead, to protect animals and ensure the safety of other trail users.

Are there any permits or entrance fees required for the Glen Loin Loop or Loch Lomond & The Trossachs National Park?

No, there are typically no specific permits or entrance fees required to access the Glen Loin Loop or to enter Loch Lomond & The Trossachs National Park itself. However, some car parks in the area may charge a fee.

What regulations should I be aware of when visiting Loch Lomond & The Trossachs National Park?

When visiting the National Park, please follow the Scottish Outdoor Access Code. This includes respecting the environment, taking all litter home, keeping dogs under control, and being considerate of other users and landowners. Wild camping has specific regulations in certain areas, so check the park's official guidance if planning an overnight stay.

Is there a recommended direction to ride the Glen Loin Loop?

Yes, the Glen Loin Loop is typically ridden clockwise. This direction allows for a steady climb on fire roads with expansive views, followed by the more technical singletrack descents, which many riders find more enjoyable in this orientation.

Does the Glen Loin Loop connect with other trails?

Yes, the route intersects with several other well-known paths. Sections of the Glen Loin Loop overlap with the Loch Lomond and Cowal Way, the Mary Queen of Scots Way, and the Three Lochs Way, offering opportunities to extend your ride or explore different routes in the area.

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