Grim's Ditch and Thames Path Loop from Wallingford
Grim's Ditch and Thames Path Loop from Wallingford
4.7
(11)
32
hikers
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 scenery, from the tranquil views of the River Thames to the ancient earthworks of Grim's Ditch. Keep an eye out for the impressive Moulsford Railway Bridge and the charming villages of Mongewell and North Stoke along the way. The trail offers a mix of riverside paths and historic landscapes, providing a rewarding outdoor experience.
When planning your visit, be aware that the trail features varied surfaces, including narrow dirt paths, grassy sections, and quiet lanes. Some parts can become muddy, especially after rain, so wearing appropriate waterproof footwear is a good idea. While the route is generally accessible, a good level of fitness and sure-footedness will help you comfortably navigate its moderate difficulty. Consider starting your hike earlier in the day to fully enjoy the scenery and complete the loop before dusk.
This loop takes you through a historically rich area, prominently featuring the ancient earthworks of Grim's Ditch, which can be up to 3 metres deep in places. These significant linear features offer a glimpse into the region's past. If you visit in spring, the wooded sections of Grim's Ditch are particularly known for their vibrant bluebell displays, adding a beautiful natural highlight to your hike. The combination of historical interest and natural beauty makes this trail a distinctive option in the Chilterns National Landscape.
Last updated: April 23, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
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6.23 km
Highlight • Historical Site
Tip by
8.61 km
Highlight (Segment) • Viewpoint
Tip by
13.7 km
Highlight • Forest
Tip by
17.4 km
End point
Parking
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
Highest point (100 m)
Lowest point (40 m)
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Weather
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Saturday 4 July
28°C
14°C
0 %
Additional weather tips
Max wind speed: 15.0 km/h
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This route was planned by komoot.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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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