Stations as far as Cambridge and Grantham fall within the journey time limit.
Routes

Alban Way
Length <20km
Max transport gap <10km
This 10.5km stile-free route takes the railbed of the former line between Hatfield and St Albans Abbey stations.
Image: Nast Hyde Halt

Capital Ring
Length >60km
Max transport gap <10km
This waymarked route forms a circuit of 126km (divisible into linear routes) around London at the approximate radius of the North and South Circular Roads, linking green spaces.
Image: Abney Park cemetery

Coal Tax Circuit
Length >60km
Max transport gap <20km
A 315km walk which links up the markers which delineate the 1860s boundary, within which imports of coal and wine were taxed by the City of London Corporation.
Image: Coal Tax marker on the Slough arm of the Grand Union Canal

Dollis Valley Greenwalk
Length <20km
Max transport gap <10km
A 16km waymarked walk which follows the Dollis Brook from Moat Mount to its confluence with the Mutton Brook (thereby forming the River Brent) and continues via the Mutton Brook to Hampstead Heath near Golders Green.
Image: the Dollis Viaduct, Mill Hill

Get out of London:
North to Hatfield
Length <60km
Max transport gap <20km
A 47km walk from Trafalgar Square to Hatfield via Finsbury Park and Barnet.
Image: The Cavell Memorial, Trafalgar Square

Hertfordshire Way
Length >60km
Max transport gap >20km
A 264km circuit round the county, taking in Royston, St Albans, Tring station, Chipperfield Common, Aldenham, Hertford, Perry Green and Bishop’s Stortford.
Image: Ayot St Lawrence

Icknield Way Trail
Length >60km
Max transport gap <20km
A walk of 193km between Ivinghoe Beacon and Knettishall Heath.

London Loop
Length >60km
Max transport gap <20km
A 277km circuit of the capital which follows close to the outer boundaries of the London boroughs, sometimes extending into neighbouring areas.
Image: Ingrebourne Valley Country Park

London Summits Walk
Length >60km
Max transport gap <20km
A 320km circuit taking in the highest point in each London borough (plus the summit of the City of London).
Image: Trent Park

Regent’s Canal Walk
Length <20km
Max transport gap <10km
A 14km walk along the towpath (with necessary diversions via streets to negotiate tunnels) between Little Venice and Limehouse.
Image: East portal of Islington tunnel

Ring around the Underground
Length >60km
Max transport gap <20km
This 302km route takes you in a grand circular multiple-stage walking tour connecting all the outer termini of the London Underground, the Tube.
Image: Uxbridge High Street
Disclaimer and advisory notices
Note that the greenwalks.uk team can accept no responsibility for content on an external site or in an external publication, nor for any action by an external site which renders our content or link outdated or unworkable. Furthermore, the team retains the liberty to unlink external content if, in its opinion, there have been changes which mean that a route may no longer be able to be considered a Green Walk (e.g., following changes to public transport services).
The responsibility for safety and security is vested in the walker alone: greenwalks.uk can take no responsibility for any inconvenience, damage, loss or injury sustained while using a route or other information from this site — many things can change without warning.
Images used in the greenwalks.uk site are either owned by our team members, or are subject to a licence-to-use held by greenwalks.uk. These images must not be further used by any third party without the explicit permission of the greenwalks.uk team, or of the original image licensor. A small number of images are in the public domain.
We should be happy to learn of any changes to the line of a walk and/or its public transport connections, or to consider an image which you own for inclusion on the site, greenwalks.uk thus being granted a free and non-exclusive licence to use the image anywhere on its site. Please contact us.