Grenofen Tunnel – Gem Bridge loop from Lydford

Bike touring routes & trails

Grenofen Tunnel – Gem Bridge loop from Lydford

Hard

4.5

(2)

riders

Grenofen Tunnel – Gem Bridge loop from Lydford

03:39

51.3km

780m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: October 15, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Dartmoor National Park

Waypoints

Start point

Bus stop

Get Directions

6.66 km

St Michael's Church, Brent Tor

Highlight • Summit

Feel small under the gaze of this church that looks like a castle

Tip by

14.9 km

Tavistock Viaduct

Highlight • Viewpoint

This impressive, stone viaduct is one of the many built to enable the railway between Plymouth and Okehampton and strides through the north of Tavistock town. Now converted into a …

Tip by

20.3 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 …

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21.1 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 …

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22.5 km

Viewpoint

24.4 km

Drake's Trail, Dartmoor National Park

Highlight • Trail

The official website promotes the DRAKE'S TRAIL with the words, "Drake's Trail in West Devon is a 21-mile cycling and walking route linking Tavistock with Plymouth. This important part of …

Translated by Google •

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27.5 km

North Plantation

Forest

29.9 km

Magpie Viaduct was designed by Brunel and originally built in 1859 from granite and timber, then rebuilt in 1902 in Staffordshire brick.

From here you can also enjoy a raised vantage point for views over Dartmoor.

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31.3 km

Grenofen Tunnel on Drake's Trail

Highlight (Segment) • Trail

A network of 21 miles (33 km) cycling and hiking paths, Drake's Trail leads from Tavistock to Plymouth. The Trail passes through quaint countryside, river valleys, peaceful woodland, and vast …

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46.5 km