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It's Grim Up North Running Yorkshire Weekend Saunter in Slawit

Upper Mills, Slaithwaite, HuddersfieldSun, 21 Mar 2027

Five, ten or a half on the Huddersfield Narrow Canal from Upper Mills in Slaithwaite on a Sunday morning, at your own pace, with places on the day.

DistanceAscentPer km
21.1 km Half Marathon
10K
5K
canalMarked course

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starts 09:00

What you’re in for

The Weekend Saunter format: five, ten or a half at your own pace on a weekend morning, with places on the day. It is the gentlest thing on the Grim calendar, meant for a first race or a long-run-with-company rather than a time. The course is the Huddersfield Narrow Canal from Slaithwaite — Slawit to anyone local — up the valley towards Marsden and back, an out-and-back turning at a marshal. This stretch climbs lock after lock, so the way out is uphill and the way back is not, and the organiser calls it the most undulating towpath they have. Registration is at the community centre on Bank Gate; the start is on the canal outside Waves.

Terrain and trail

Towpath that varies from surfaced to grass and stone, with a ramp at every lock — and there are a lot of locks between Slaithwaite and Marsden. It is still a canal, so nothing is steep for long, but it is not the flat towpath of the Leeds & Liverpool events, and a long day here is a harder day. Wet and muddy in the low sections after rain; the winter edition can be icy. The events are cup-less, so bring your own cup or bottle for the water at the finish. Over-ear headphones are not allowed, and there may be an unmarshalled road crossing.

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Train for it: routes near the start

Routes starting within 20 km of Upper Mills, Slaithwaite, Huddersfield, nearest first. Each one has a free GPX file and a TRP grade, so you can rehearse the ground before race day.

HARD
Marsden 10 Mile Challenge
16.4km · 357m climb · Loop · 3.6km away
It is the whole of Marsden Moor in one loop - Wessenden, Standedge and the reservoir chain - on ground that carries centuries of packhorse and canal history, and you can run it door to door from the train.
HARD
Easter Gate, March Haigh and Black Moss Reservoirs
16.8km · 349m climb · Loop · 4.1km away
You string together three reservoirs and a stretch of the Pennine Way on quiet moor tracks, with the whole of Marsden Moor opening out around you and almost nobody else about.
HARD
Stairway to Heaven from Wessenden
13.8km · 342m climb · Loop · 8.5km away
The stepped pull out of Wessenden that gives the route its name delivers you straight onto the roof of the moor, with the whole reservoir valley dropping away behind you in one go.
VERY HARD
Holme Moss to Snailsden and Britland Edge Hill
10.4km · 155m climb · Loop · 10km away
It packs a genuine sense of wilderness into ten kilometres - trackless peat, two rarely-visited tops and the huge radio mast of Holme Moss as your landmark all the way round.
HARD
Black Hill and Crowden Little Brook Loop
14.4km · 426m climb · Loop · 15km away
Black Hill's peat-black plateau feels as remote as anywhere in the Peak, and the return along the edge above Laddow Rocks is some of the best moor-edge running in the north.
MODERATE
Torside to Woodhead Tunnels via the Longdendale Trail
10.2km · 51m climb · Out & back · 15km away
It is a rare flat, fast run in the Dark Peak - a traffic-free old railway line running dead level past four reservoirs to the great stone mouths of the Woodhead tunnels.

All West Yorkshire routes →

How to enter

Sun, 21 Mar 2027 · Entries open · £18–£34

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Entries are handled by It's Grim Up North Running, not by us. We take nothing for sending you there.

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Common questions

The Yorkshire Weekend Saunter in Slawit offers 3 distances: 5K (3.1 miles), 10K (6.2 miles), Half Marathon (21.1 km / 13.1 miles).