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United Kingdom
England
South East England
Oxfordshire
South Oxfordshire
Wallingford

Grim's Ditch and Thames Path Loop from Wallingford

Moderate

4.8

(10)

27

hikers

Grim's Ditch and Thames Path Loop from Wallingford

04:30

17.4km

90m

Hiking

Embark on the Grim's Ditch and Thames Path Loop from Wallingford, a moderate hiking route spanning 10.8 miles (17.4 km) with an elevation gain of 309 feet (94 metres). You can expect to complete this journey in about 4 hours and 29 minutes. As you hike, you will enjoy varied…

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Chiltern Hills AONB

Waypoints

A

Start point

Parking

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1

6.23 km

Moulsford Railway Bridge

Highlight • Historical Site

This huge railway bridge crosses the River Thames here. It is locally known as "Four Arches"... because of its four arches. There are two parallel bridges here, in fact, so …

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2

8.61 km

Farmland Path via Watch Folly

Highlight (Segment) • Viewpoint

A spellbinding walk between Woodcote Road and A4074. A very picturesque stretch in the fields first, where you are surrounded by gently swaying grasses, giving way later to grasslands and …

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3

13.7 km

Grim's Ditch

Highlight • Forest

There are many prehistoric bank and ditch earthworks in the Chiltern's region, and many share the name Grim's Ditch or Grim's Dyke. This one is thought to have been a …

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B

17.4 km

End point

Parking

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Way Types & Surfaces

Way Types

7.06 km

4.49 km

3.03 km

1.48 km

631 m

577 m

147 m

Surfaces

6.79 km

6.42 km

3.04 km

750 m

270 m

147 m

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Elevation

Elevation

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Highest point (100 m)

Lowest point (40 m)

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Weather

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Thursday 7 May

17°C

6°C

12 %

Additional weather tips

Max wind speed: 14.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How difficult is the Grim's Ditch and Thames Path Loop from Wallingford?

Komoot classifies this 17.4 km loop as a moderate hike. While sections along the Thames Path can be quite easygoing, the varied terrain, including potentially muddy paths and some gentle ascents, requires good fitness and sure-footedness. Be prepared for a mix of surfaces, from narrow dirt paths to quiet lanes.

What is the terrain like on this loop?

The terrain is quite varied. You'll encounter narrow dirt paths, grassy sections, and some quiet residential roads. Along the Thames Path, expect riverside views. The Grim's Ditch sections, particularly between Nuffield and Mongewell, feature ancient earthworks and wooded areas. Be aware that some parts can be muddy, especially after rain.

What are the main points of interest along the route?

This loop offers a blend of natural beauty and historical significance. You'll walk along the historic Thames Path and sections of the ancient Ridgeway National Trail. Key highlights include the impressive Moulsford Railway Bridge, scenic Farmland Path via Watch Folly, and the ancient Grim's Ditch itself. The trail also passes through picturesque villages like Mongewell and North Stoke.

When is the best time of year to hike this loop?

Spring is an excellent time to visit, especially for the chance to see beautiful displays of bluebells in the wooded sections of Grim's Ditch. The trail can be enjoyed year-round, but be prepared for potentially muddy conditions during wetter months. Summer and early autumn offer pleasant walking weather.

Is the Grim's Ditch and Thames Path Loop dog-friendly?

Yes, the loop is generally dog-friendly. However, as it passes through farmland, villages, and potentially near livestock, it's essential to keep dogs under close control, preferably on a leash, especially in areas with farm animals or where signs request it. Always clean up after your dog.

Where can I park for the Grim's Ditch and Thames Path Loop?

The loop typically starts from Wallingford, which offers various parking options. Look for public car parks within Wallingford town centre, which provide convenient access to the Thames Path and the start of the loop.

Are there any permits or fees required for this trail or within the Chilterns National Landscape?

No, there are no specific permits or entrance fees required to hike the Grim's Ditch and Thames Path Loop or to access the public footpaths within the Chilterns National Landscape. However, standard parking charges may apply in Wallingford car parks.

Does this trail intersect with other well-known paths?

Yes, this loop incorporates sections of several notable trails. You'll walk along parts of the Thames Path and the ancient Ridgeway National Trail. Other official trails that intersect or run concurrently for portions include the European walking route E2, St Frideswide’s Way, and the Chiltern Way Southern Extension.

What is the historical significance of Grim's Ditch?

Grim's Ditch is an ancient linear earthwork, believed to date back to the late Iron Age (around 100 BC). It's a Scheduled Monument, protected for its archaeological importance. Its original purpose is debated, with theories suggesting it served as a territorial boundary or an ancient trackway. The name itself is Old English, possibly linking to the Norse word "Grimr," meaning "Devil," used by Anglo-Saxons for mysterious features.

Are there places to eat or drink near the trail?

Yes, Wallingford, where the loop typically starts and ends, offers a good selection of cafes, pubs, and restaurants. You'll find options for refreshments before or after your hike. Some of the villages along the route, such as Mongewell and North Stoke, might also have local pubs or small shops.

Is this hike suitable for families with children?

Given its moderate difficulty and 17.4 km length, this loop is best suited for families with older children who are accustomed to longer walks. The varied terrain and historical points of interest can be engaging, but younger children might find the full distance challenging. Consider shorter sections if hiking with very young children.

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