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Hiking trails & Routes

South West England

Grenofen Tunnel – Gem Bridge loop from Horrabridge

Hiking trails & Routes

South West England

Grenofen Tunnel – Gem Bridge loop from Horrabridge

Moderate

4.4

(5)

20

hikers

Grenofen Tunnel – Gem Bridge loop from Horrabridge

02:13

8.02km

140m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Last updated: August 6, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Dartmoor National Park

Waypoints

A

Start point

1

3.79 km

Grenofen Tunnel

Highlight • Structure

Great walk, the footpath from the top of brook lane/Rix hill is not well used, just follow the hedgeline!

Tip by

2

4.10 km

Tunnel in Dartmoor National Park

Highlight • Rest Area

This is a great attraction and great with the kids but don't go in to hide from the rain, it leaks, a lot after heavy rain

Tip by

3

4.16 km

Grenofen Tunnel

Highlight • Structure

Part of the Drake’s Trail and the Dartmoor Way, this 374-yard (341 m) tunnel was built by Brunel in the mid-1850s for the South Devon & Tavistock Railway. After the …

Tip by

4

4.67 km

Gem Bridge and Gem Mine

Highlight • Bridge

5

5.04 km

Gem Bridge

Highlight • Bridge

Gem Bridge towers 78 feet (24 m) above the River Walkham, affording wonderful views over the valley below. Until 1965, the original Walkham Viaduct would have stood here. Designed by …

Tip by

6

5.11 km

Drake's Trail: Magpie Viaduct and Bluebell Woods

Highlight (Segment) • Trail

This is an exciting section of the glorious 21-mile Drake's Trail cycling path that runs through Dartmoor.

You will pass through enchanting forestry featuring seasonal bluebells and over Magpie Viaduct, …

Tip by

B

8.02 km

End point

Way Types & Surfaces

Way Types

3.88 km

3.16 km

937 m

< 100 m

< 100 m

Surfaces

4.02 km

1.77 km

1.63 km

565 m

< 100 m

< 100 m

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Elevation

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

Highest point (150 m)

Lowest point (80 m)

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Weather

Powered by Foreca

Saturday 17 October

13°C

3°C

0 %

Additional weather tips

Max wind speed: 20.0 km/h

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