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Gem Bridge – Grenofen Tunnel loop from Pennycomequick Quarry (dis)

Routes

Hiking trails & Routes

Gem Bridge – Grenofen Tunnel loop from Pennycomequick Quarry (dis)

Hard

4.3

(9)

hikers

Gem Bridge – Grenofen Tunnel loop from Pennycomequick Quarry (dis)

05:02

18.3km

310m

Hiking

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: May 7, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Dartmoor National Park

Waypoints

Start point

Parking

Get Directions

5.73 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

7.54 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

7.91 km

Gem Bridge and Gem Mine

Highlight • Bridge

8.79 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

13.7 km

Tavistock Town Hall

Highlight • Monument

There's a great permanent exhibition in here - good social history. Free, and well worth a visit.

Tip by

13.8 km

Pannier Market

Highlight • Structure

Historic covered market, in beautifully restored building. Great for browsing, all sorts on offer, good when the weather's wet (which is fairly frequent 😉).

Tip by

13.9 km

Abbey Bridge and Weir

Highlight • Historical Site

This gorgeous 18th-century bridge is one of several in the heart of Tavistock but is perhaps the prettiest. The River Tavy rushes underneath to pass down the weir, creating a …

Tip by

18.3 km

End point

Parking

Way Types & Surfaces

Way Types

9.03 km

5.00 km

2.03 km

1.98 km

248 m

Surfaces

5.64 km

4.94 km

2.41 km

2.28 km

2.27 km

754 m

Elevation

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

Highest point (210 m)

Lowest point (70 m)

Weather

Sunday 21 June

27°C

16°C

40 %

Additional weather tips

Max wind speed: 18.0 km/h

to get more detailed weather forecasts along your route

Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Gem Bridge – Grenofen Tunnel loop from Pennycomequick Quarry (dis)

Drake's Trail: Magpie Viaduct and Bluebell Woods

Gem Bridge

Gem Bridge and Gem Mine

Grenofen Tunnel

Tavistock Town Hall

Pannier Market

Abbey Bridge and Weir

Nearby routes

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