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Grim's Ditch

10 ha

📷 Wikipedia · Grim's Ditch · CC BY-SA 3.0

Plan your visit

WildlifeBirdsInsects
Dogs welcome10 ha

Getting here

51.61949, -0.36150

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Visiting this summer

Seasonal nature notes and what to look for now

  • 🌞Midsummer — early morning visits most comfortable; look for deer fawns in quieter clearings
  • 🌿Foraging is at its best in summer here
  • 🐕Dogs welcome — bring water in summer; the site has enough space to find shade on hot days

Good to know

  • 🐕Dogs welcome
Parking

Best for

6 activities

Wildlife

Multi-group wildlife — Amphibians, Birds, Mammals, Reptiles; Multi-group wildlife — Amphibians, Birds, Mammals, Reptiles

Free

Bird watching

Birds — Starling, Blue Tit, Magpie +62 more · last seen 2026; Birds — Starling, Blue Tit, Magpie +62 more · last seen 2026

Free

Insect spotting

Lowland heathland — silver-studded blue and heath fritillary butterflies; Insects — Meadow Brown, Small White, Ringlet +52 more · last seen 2026

Free

Seasonal nature

Plants — American Skunk-cabbage, Hornbeam, Pendulous Sedge +59 more · last seen 2024; Plants — American Skunk-cabbage, Hornbeam, Pendulous Sedge +59 more · last seen 2024

Free

Foraging

Plants — Smooth Hawk's-beard, Common Nettle, Hazel +10 more foraging species

Varies

Heritage

Historic site

Free

Trails nearby

Within roughly 5 km
🚶

Walking

27 signed routes nearby

Signed route nearby
Grand Union Canal WalkWalking route

Napton to Coy Carp section

Named routeRegional walking route
Harrow Weald Common Nature TrailWalking route

Short walk. Orange waymarking http://www.harrowncf.org/Harrow_Weald_Nature_Trail.pdf

Named routeLocal walking route
Celandine RouteWalking route
Named routeLocal walking route
LOOP link to Moor Park UndergroundWalking route
Named routeRegional walking route
Capital Ring link to Harrow-on-the-Hill stationWalking route
Named routeRegional walking route
🚴

Cycling

63 signed routes nearby

Signed route nearby
Proyer's PathCycling route
Named routePoint-to-pointLocal cycle route
Belmont TrailCycling route
Named routeLocal cycle route
LCN 45Cycling route
Named routeRef 45Local cycle route
LCN+ link 89Cycling route
Named routeRef 89Local cycle route
Metropolitan cycle routeCycling route
Named routeRef MLocal cycle route
LCN 88Cycling route
Named routeRef 88Local cycle route

Wildlife to spot

Photos

Grim's Ditch

📷 Wikipedia · Grim's Ditch · CC BY-SA 3.0

Grim's Ditch

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Nearby places

Useful places within 5 km

🌱Aldenham Country ParkUrban park4.6 km→🌱Canons ParkUrban park4.8 km→🌱Pinner Memorial ParkUrban park3.4 km→🌱Oxhey ParkUrban park3.5 km→🌱Harrow Recreation GroundUrban park4.1 km→🌱King George V Memorial GardenUrban park4.7 km→

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