Welcome to Hertfordshire Walker

Free access to more than 200 walks in Hertfordshire

Walk 22: The North Mymms Way

11.2 miles (18 km) with 700ft of ascent

Photograph of The path along Foxes Lane near Welham Green mentioned in point 13 below Image by Hertfordshire Walker released under Creative Commons BY-NC-SA 4.0
The path along Foxes Lane near Welham Green mentioned in point 13 below
A half-day walk, keeping, as close as possible using public footpaths, bridleway, byways, permissive paths, and quiet lanes to the boundary of the historic parish of North Mymms in south Hertfordshire, which is mentioned in the Domesday Book. Allow four to five hour.

The idea for the North Mymms Way came to me as I was writing an article for The North Mymms History Project about a centuries-old tradition called 'Beating The Bounds'.

It involved a 17.5 mile walk along the parish boundary to visit, and ceremonially claim on behalf of the parish, various landmarks along the way.

Beating the bounds in August 1950
Beating the bounds in August 1950
Image courtesy of the Images of North Mymms collection
Beating The Bounds last happened in the '90s. So I thought it would be nice to create a long-distance walk which did something similar. And North Mymms Parish Council agreed. Unlike the original route, which followed the actual parish boundary, this walk keeps to footpaths, byways, and lanes.


Map for Walk 22: The North Mymms Way Created on Map Hub by Hertfordshire Walker Elements © Thunderforest © OpenStreetMap contributors There is an interactive map at the foot of this page
Map for Walk 22: The North Mymms Way
Created on Map Hub by Hertfordshire Walker
Elements © Thunderforest © OpenStreetMap contributors

There is an interactive map at the foot of this page
Those with GPS devices can download GPX or KML files for this walk. We've added What3Words location references for those who use that system. If you print these walks you might want to use the green PrintFriendly icon at the bottom of these directions to delete elements such as photographs.

For those travelling by car, there are three free parking spots marked on the map with a blue and white marker They are: For those travelling by train, the route passes both Brookmans Park and Welham Green stations. And for those travelling by bus there are a number of bus routes serving the area. Please use the Intalink service to find bus timetables. There is restricted parking in Brookmans Park and Welham Green and surrounding roads (check signs), but you can pay to park in the station car parks.

1: Starting in the village of Brookmans Park, cross the railway bridge then head N along Station Road for 160m.

North Mymms footpath 9 heading S alongside Station Road
2: Just before you reach Bradmore Lane on your left, look out for a footpath on your left (location -https://w3w.co/horses.save.drop). Take this path, North Mymms footpath 9, and head S through a tunnel of trees and bushes.

3: After 590m you will reach a footbridge over Raybrook (location - https://w3w.co/sooner.unwanted.chops). Cross the brook, turn right at the gate, then follow North Mymms footpath 11 W for 300m with the field on your left and Raybrook on your right. At the end of the field, cross the footbridge on your right. As soon as you have crossed he bridge, turn left then head for a gate leading to a continuation of the footpath through woodland (location - https://w3w.co/refers.change.driver). This is known as Wise’s Lane, although it is no more than a footpath. Continue W along this footpath for 570m until it dips downs, becomes a wooden elevated walkway, emerges at a concrete bridge across Mymmshall Brook (stop here to try to spot a kingfisher), and ends on Warrengate Road (location - https://w3w.co/keep.decreased.swing).

4: Turn left on Warrengate Road then continue walking S for 600m until you reach the last house on your right (location - https://w3w.co/desk.chart.wing). Here you turn right and walk up to Swanland Road.

5: Cross Swanland Road then take the byway directly opposite. This is North Mymms restricted byway 83, which turns sharp left then leads round to a footbridge over the A1(M). At the other side of the motorway, continue heading SW along North Mymms restricted byway 3 heading up the hill and through pine woods for 1.7km until you reach a cottage on the right (location - https://w3w.co/kept.boats.voter).

6: Here your way is sharp right heading N and uphill for 720m until you reach a cottage on your left just before a clearing (location - https://w3w.co/shelf.jolly.woke). Walk on past the cottage and continue along North Mymms bridleway 2 for 1.8km as it continues N and dips down the secluded Potwells valley and up over the hill, through Cangsley Grove, then NNE through woodland to join St Mary’s Church Road and St Mary’s church (location - https://w3w.co/nurse.outfit.places) on the left.

7: Turn left into St Mary’s churchyard then continue past the left side of the church until you reach the W entrance in the tower (the second door).

Photograph of St Mary's Church, North Mymms  Image by Hertfordshire Walker released under Creative Commons BY-NC-SA 4.0
St Mary's Church, North Mymms
Here you will see a footpath to your left heading through the gravestones (location - https://w3w.co/stress.gather.spell). It is marked with small green posts and leads down to a metal gate into the grounds of North Mymms Park.

Photograph of The footpath from St Mary's Church  Image by Hertfordshire Walker released under Creative Commons BY-NC-SA 4.0
The footpath from St Mary's Church
Follow this footpath, North Mymms footpath 29, for 300m heading NW as it crosses parkland, first over the drive to North Mymms House, and then across a footbridge over the River Colne (location - https://w3w.co/drape.elaborate.frost).

Continue heading NW for 370m following the marker posts until you reach a gate leading to Tollgate Road (location - https://w3w.co/hungry.assume.congratulations).

8: Cross the road then turn left on the permissive path that runs NW inside the field and along the E side of Tollgate Road for 200m until you reach another metal gate (location - https://w3w.co/riders.labels.gallons).

Here you turn right and take North Mymms footpath 55 heading NE for 520m across the field passing a line of oaks and continue until you reach the side of the A1(M). Turn left and head NW for 70m walking with the A1(M) on your right. Climb a set of wooden steps (location - https://w3w.co/uses.resort.myself) up to the bridge over the A1(M).

9: Cross the bridge then turn left heading diagonally NNW along North Mymms footpath 52 for 360m  until you reach the hedgerow in the distance (location - https://w3w.co/losses.puddles.deed). This field is rarely cultivated and can be a mass of red poppies in June.

Poppies in the field described in point 9 above
10: Go through the gate then turn right. The bridleway (formerly Dellsome Lane) veers right. Ignore the first path on the left, and keep going until you reach a second path after 380m (location - https://w3w.co/prep.bets.times). Take this byway, North Mymms restricted byway 22, and follow it as it weaves its way NE. At the point where the path emerges in an open field you continue straight along a footpath heading NE, now on North Mymms footpath 23, with the field on your left and the hedgerow on your right. You might want to pick up a stick to push back encroaching nettles.

11: After 790m you will emerge on the footpath from Welham Green to Hatfield (location - https://w3w.co/torch.vent.damage). Turn right on this path, North Mymms footpath 20, and continue S until you reach Pooleys Lane on the northern outskirts of Welham Green.

12: Turn left on Pooleys Lane and follow the road as it veers right, looking out for a path on your left after 240m (location - https://w3w.co/admire.branded.cabin). This path leads to Travellers Close on the Welham Green industrial estate. Continue along Travellers Close until you reach a T-junction with Travellers Lane. The railway line will be straight ahead. Turn right, and, keeping the railway on your left, continue until you reach Dixons Hill Road (location - https://w3w.co/bind.ridge.calms).

13: Cross Dixons Hill Road and turn left towards the station. Cross the bridge over the railway then tuyrn right on Foxes Lane (location - https://w3w.co/pigs.when.monkey), which is a BOAT (byway open to all traffic). You will see a caravan park on your right and one on your left. Continue along North Mymms BOAT 84 for 500m until the track turns to the right (location - https://w3w.co/globe.noon.breath). You now head S then SE for 640m, still on North Mymms BOAT 84, until you reach Bulls Lane (location - https://w3w.co/help.limbs.cheeks).

14: Turn left on Bulls Lane then follow it E and ESE for 650m until you reach a T-junction at Bell Bar (location - https://w3w.co/found.loops.couches).

15: Your way is right heading S and then NE for 610m as it climbs to the A1000.

16: Just before you reach the A1000 (The Great North Road) take the footpath on the right, North Mymms footpath 68, which is a gated road called The Drive (location - https://w3w.co/oppose.margin.panels). Turn right here then continue along The Drive heading SSW for 170m until you reach the top of Pine Grove (location - https://w3w.co/digits.cheese.sentences). Directly ahead of you to the right you will see a footpath running behind Chancellor's School. Take this continuation of North Mymms footpath 68 until you reach Brookmans Park Golf Club on Golf Club Road (location - https://w3w.co/rank.point.activism).

17: Turn left on Golf Club Road then head S until you reach the crossroads with Brookmans Avenue, Georges Wood Road, Mymms Drive, and Golf Club Road (location - https://w3w.co/caged.towns.wooden).

18: Head straight across the junction and continue S for 330m down Mymms Drive passing Moffats Lane on your right. Continue past The Grove on your right and then look out for a footpath on your right between the houses (location - https://w3w.co/shell.seats.puts). This is not a public footpath but is a permissive path leading to the woodland of Gobions Open Space, a North Mymms Parish Council public space.

19: Follow the path SSW through the woodland for 330m until you reach Gobions Pond. Here you turn left and then head S towards a gate (location - https://w3w.co/tubes.casino.union). This is one of the entrances to Gobions Wood, a Herts and Middlesex Wildlife Trust reserve. Again this is a permissive path maintained by the trust.

Photograph Yellow flag and water lilies on Gobions Pond in June  Image by Hertfordshire Walker released under Creative Commons BY-NC-SA 4.0
Yellow flag and water lilies on Gobions Pond in June
20: Walk down this path, still heading S, with the fields on your left and hedgerow on your right. When you enter the wood continue heading S and cross a wood and steel footbridge. Once over the other side, turn right and cross a shorter wood and steel footbridge.

21: Shortly after the second bridge look out for a gate on the left leading to a permissive path (location - https://w3w.co/flip.bravo.brands). Take this permissive footpath and head S for 220m with the hedgerow on the left and the field on the right until you reach a gap in the hedge on your left (location - https://w3w.co/dark.events.demand). Go through the gap and head diagonally SE on North Mymms footpath 11 towards Folly Arch, keeping to the right of the arch until you reach Hawkshead Road (location - https://w3w.co/change.island.spices).

22: Turn right on Hawkshead Road and head W for 320m along the N side of the road past Boltons Park Farm. After passing the farm cross the road then go through a gate leading to a permissive path running parallel to Hawkshead Road heading W (location - https://w3w.co/tone.rather.hails). This path has been created for the benefit of vet college students. North Mymms Parish Council was given permission to use this path for the North Mymms Way.

23: After 520m the path rejoins Hawkshead Road at the junction with Hawkshead Lane and Bluebridge Road. Here you turn left, cross Hawkshead Lane, and take another permissive path on the right which heads W along the N side of Hawkshead Lane (location - https://w3w.co/robe.wanted.libraries). Continue heading W for 370m until you reach the railway bridge.

24: As soon as you cross the railway bridge take the first footpath on your right (location - https://w3w.co/school.makes.blur), North Mymms footpath 11, then walk N with the railway on your right. Continue on this path for 380m until you reach a footpath sign on your left (location - https://w3w.co/remote.pill.signal).

25: Take this footpath, a continuation of North Mymms footpath 11, and descend down a steep flight of stairs heading NW through bushes to Raybrook at the bottom. Continue heading NW for 300m with the fields on your left and the brook on your right until you reach the gate you went through towards the start of your walk (location - https://w3w.co/jets.swim.second). Turn right on this footpath, North Mymms footpath 9, then head NNE for 550m, retracing your steps back to Station Road (location - https://w3w.co/horses.save.drop) where you turn right, cross the railway bridge and arrive back in Brookmans Park.

Interactive Map

Note: This walk was first mapped out and written in 2011 and was one of a collection of local walks on the former walks section of the Brookmans Park newsletter. All those walks have since been moved here to the Hertfordshire Walker site. In late 2017, the author of this walk, David Brewer, suggested that North Mymms Parish Council (NMPC) might adopt The North Mymms Way as an official way-marked path. David was invited to give a presentation to councillors setting out the route and the features of the North Mymms Way. Shortly after, the NMPC decided to recognise the route and make it an official NMPC long-distance footpath.


  1. Thanks for this excellent resource.

    This was a lovely walk for the end of April, especially the first half. Lots of shady stretches, and some great views in places. A pleasure to see the bluebells, lambs, fawns and rabbits out.

    1. Wow, big walk, respect! Well done. Glad you enjoyed it.


If you try any of the walks on this site, please let us know what you thought of them. Comments are moderated, so there will be a slight delay before what you write goes live.

This site is supporting the Trussell Trust

Search This Site