- Sat 7 Nov 2026
08:15
Age 16 & over
£23-£25
- 6.6 miles trail running
Event overview
If you like beautiful races in beautiful places, like fun, like medals and like goodies then this event is for you.
You'll enjoy a medal at the finish line and a neckerchief for your dog too!

This event is part of the It's Grim Up North calendar of runs, offering a range of distances and levels of difficulty so there is something for everyone.
Famous for its low-key approach, all runners will be greeted with a warm smile and friendly chat.
The aim is to get you out running, help you enjoy the beautiful countryside with great camaraderie and for you to experience the sense of well-being you get when you cross that finish line.
The beautiful reservoirs around North Yorkshireโs Swinsty and Fewston are a hidden gem and will take you away from every day life.
You'll be shown that the North is anything but Grim.
This event is part of The Grim Reservoir Dogs Canicross Challenge.
Event photos
- Average fitness
- Beginner-friendly
- Dogs allowed at venue
- Event village
Difficulty rating

Shoe type
Road shoes. Unless wet, the course is generally good underfoot.
- First aid
- Marshals
- Undulating
- Water stations
- Way markers
- GPX available
GPX route
The route is displayed on the map above.
Overview
Run a stunning multi-reservoir route with peaceful trails, rolling terrain and wide-open Yorkshire views. Expect mixed surfaces, steady climbs and a truly atmospheric course across this beautiful corner of the moors.
Route highlights
- Scenic route linking reservoirs
- Mixture of trail, track and quiet paths
- Forests, moorland and waterside views
- Clearly marked course with supportive marshals
Map

- Paid parking
- Rural
- Toilets
Event HQ
Swinsty & Fewston Reservoir Car Park
North Lane
Otley
North Yorkshire
LS21 2NP
UK
- Chip timing
- Goody bag
- Map
- Medal
Included
- Humans โ sweet treats
- Dogs biscuits and a doggy buff
- Bespoke medal
- There will be lots of lovely things at the finish line as we love to celebrate every runnersโ achievements
- All runners are winners
As ever, a friendly low key event with excellent organisation from the Grim team. Lovely trail course around the reservoirs, amid glorious autumn colour. Andy D
Very impressed with my first Grim up North Marathon. I'll be back. Gary O
Great event and beautiful course. A must-do for any serious athlete! James D
Everything from picking up our numbers to the finish of the race was brilliant, route well marked and marshalls very good and friendly, well organised and we love our medals, would definitely recommend these race events. Sue M
Great event and beautiful course. A must-do for any serious athlete! Michael J
Was fantastically organised and run event! All the volunteers were ace. Will definitely be signing up to more GUN events!! Kris H
My first Grim Up North Running event, really enjoyed it. Very friendly, well organised and marshalled, beautiful course. Chris S
First time running an its grim up north event, nice friendly atmosphere, really friendly and helpful staff, beautiful course, weather was kind as well so all in all a very enjoyable start to the weekend. Thanks!! Richard J
Beautiful location and a varied, undulating trail with great views of the reservoir and autumn colours. Shame Gareth Southgate didn't put in an appearance as we ran past his house again and again and again.... David S
Iโve done a number of events with Grim but this is now one of my favourites. The route covers every kind of terrain possible. The views of the reservoirs are stunning. The Marshall support is second to none. The medal is fabulous as is the cake and goody bag. You MUST do this race. Rebecca B
Reviews thanks to RaceCheck
- Bring your own cup
- Plastic bottle free
- Sustainability policy
This is cupless event. All runners are requested to bring their own labelled, reusable cup or bottle.
- Age 16 & over
- Entries open
- Collect race pack
- Enter online
- Event merch available
Entry fees
Entry fee (Affiliated)
£23.00
Entry fee (Unaffiliated)
£25.00
Other races at event
- Sat 7 Nov 2026
- #1 of 2
08:30
Age 16 & over
£14-£16
- 3.3 miles trail running