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Routes
Hiking trails & Routes
United Kingdom
Scotland
Highlands
Glengarry

A loop of Loch Oich on the Great Glen Way

Hard

4.2

(12)

40

hikers

A loop of Loch Oich on the Great Glen Way

05:26

20.1km

280m

Hiking

Hike the difficult 12.5-mile (20.1 km) loop of Loch Oich on the Great Glen Way, featuring diverse terrain and scenic Highland views.

Last updated: February 26, 2026

Tips

Includes movable bridges

Check opening times.

After 6.18 km for 48 m

After 13.4 km for 50 m

Waypoints

A

Start point

Parking

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1

495 m

Invergarry Castle Ruins

Highlight • Historical Site

Invergarry Castle is situated in an atmospheric setting overlooking Loch Oich. The castle was built between 1610-40 by Donald Mac Angus, eighth chief of Clan MacDonell of Glengarry. The castle survived attacks in 1644 during the Wars of the Three Kingdoms burnt by the forces of General Monck in 1654. These days, the ruins are a very interesting site to observe. Unfortunately, you cannot get inside but can still see a fair bit.

Tip by

2

11.9 km

This disused railway, which follows the route of the Great Glen from Fort William, was built between 1897 and 1903. Despite intentions to continue the tracks from Fort Augustus to Inverness, this never occurred and the route was scrapped in 1946. This is one of the tunnels which was built over General Wade's Military road to accommodate it.

Tip by

3

13.5 km

Oich Bridge

Highlight • Historical Site

One of the few pedestrian bridges over the Great Glen, this was originally built when Thomas Telford constructed the main road along the Glen. Designed by James Dredge, he was instructed to create a single span across the river to reduce the chances of it washing away (as it had previously). When the A82 was upgraded in the early 20th Century a newer road bridge was built next door.

Tip by

B

20.1 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

9.67 km

5.68 km

2.08 km

1.46 km

1.07 km

< 100 m

Surfaces

7.30 km

5.20 km

3.91 km

1.87 km

1.77 km

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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 (120 m)

Lowest point (30 m)

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Weather

Powered by Foreca

Thursday 28 May

16°C

11°C

84 %

Additional weather tips

Max wind speed: 24.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How challenging is the loop of Loch Oich?

This loop is considered a moderate to hard hike. While the eastern shore offers flatter paths along the Caledonian Canal, the western side involves more varied woodland trails and can include steep climbs on gravelly tracks. Komoot rates it as 'difficult', requiring good fitness.

How long does it typically take to complete this hike?

The 20.1 km (12.5 mile) loop typically takes around 5 hours and 26 minutes to complete, though this can vary based on your fitness level and how often you stop to enjoy the scenery.

What kind of terrain can I expect on the route?

The terrain is quite varied. You'll encounter sections of the Great Glen Way following the Caledonian Canal towpath and old railway lines on the eastern side, which are generally flat. The western side features more diverse woodland trails, forestry tracks, and some gravelly sections with ascents and descents.

Where can I park to access the trail?

While specific parking locations aren't detailed, the trail is part of the Great Glen Way, which has various access points. Look for parking near Invergarry or Laggan Locks, which are common starting points for sections of the Great Glen Way around Loch Oich.

Is the Loch Oich loop dog-friendly?

Yes, the loop is generally dog-friendly. However, as it passes through varied terrain and potentially near livestock or wildlife, it's always best to keep dogs under close control, ideally on a leash, especially in forested areas or near roads.

What is the best time of year to hike this route?

The Scottish Highlands can be enjoyed year-round, but late spring to early autumn (May to September) generally offers the most favorable weather conditions for hiking, with longer daylight hours and the chance to see wildflowers. Be prepared for changeable weather at any time of year.

Do I need any permits or pay entrance fees for this trail?

No, there are no specific permits or entrance fees required to hike the A loop of Loch Oich on the Great Glen Way.

What historical sites or natural features will I see along the way?

You'll pass several interesting points, including the ruins of Invergarry Castle Ruins, the Invergarry and Fort Augustus Railway Tunnel, and the historic Oich Bridge. You'll also enjoy picturesque lochside views, deciduous woods, and may spot ancient crannogs in Loch Oich.

Does this route connect with other long-distance trails?

Yes, a significant portion of this loop utilizes sections of the Great Glen Way. It also overlaps with parts of the Scotland Trail, NCN National Route 78 (north), and the Highland Trail 550.

Are there any sections of the trail that are particularly steep or challenging?

The western side of the loch, particularly if you take the Invergarry Link, involves more varied woodland trails and can include some steep climbs on gravelly tracks. The eastern side, following the Caledonian Canal, is generally flatter and easier.

Can I swim in Loch Oich along the trail?

Yes, Loch Oich offers inviting spots for wild swimming on a warm day. Always exercise caution, be aware of water conditions, and respect local guidelines if any are posted.

Are there any facilities or places to eat near the trail?

While the trail itself is largely natural, you'll find amenities in nearby villages like Invergarry or Fort Augustus, which offer cafes, pubs, and accommodation options. It's advisable to carry sufficient water and snacks for the hike.

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