The Course

The course is 5000m (5k) long. This has been accurately measured by us with a professional measuring wheel. The course is at Grangetown, Cardiff. The course is run entirely on tarmac paths. Some sections of the course may accumulate mud, leaves and puddles after rain. Dependent on availability, marshals will be at key sections of the course, or signs will be in place.

Please remember that the parkrun uses shared paths. For the continued success of the event, please give way to other park users. This won't hurt your time, it won't stop you from getting a PB and it will make sure everyone continues to enjoy the event.

Please, wherever possible walk, jog, cycle or use public transport when attending the event. If you do have to drive, please consider car-sharing to reduce our impact on both the environment and other park users. Please also watch out for other park users when arriving and leaving. Parking may be limited so try to arrive early.

Course Safety

Grangemoor parkrun is a fun, free event organised by volunteers for the benefit of everyone. We wish to make the event as safe as possible, so participants, spectators and helpers are asked to take care about the following:

  • Please be considerate to the park and other park users at all times.
  • Children under the age of eleven must be accompanied (within arm's reach) throughout the run by a parent, guardian or appropriate adult of the parent's choice.
  • Please arrive by foot, by pedal-power or by public transport if you can - your efforts help to reduce our impact on the park and the planet.
  • Please consider volunteering to help occasionally - this event survives only because of your generosity - please visit the volunteer page for more information.
  • Take care near roads and car parks - some vehicles drive very quickly. Please congregate away from the cars and be careful in particular if you have children. If you’re driving to the run, please drive carefully even if you’re late!
  • When running, take care on uneven surfaces – whether on grass or on tarmac. Watch out for cyclists, other runners, pedestrians, children, dogs, wildlife, park animals, vehicles, park maintenance work, falling branches, bollards, posts and other obstacles around the course.
  • Please ensure that you are fit enough to walk, jog, run 5k (3.1 miles) with us.
  • Remember to warm up before the run.
  • If you see a runner with a serious problem, please stop to help them out and get help as soon as possible.
  • If you’re watching, keep clear of runners on the course, and look after any children and dogs you may have with you.
  • It is not permitted to run with a pushchair and a dog at the same time.
  • Lyme Disease is a bacterial infection spread to humans by infected ticks. Consider protecting yourself by wearing repellent when at parkrun events in grassy or wooded areas. See for further details.
  • You are welcome to take part with one dog by your side, within reach at all times, on a short, handheld, non-extendable lead. Please also see this Support Site entry for further details about parkrunning with dogs.
  • Runners pushing buggies are welcome, but please take care of others around you and do your best to start at an appropriate place in the field for your pace.

We hope these tips help to ensure that Grangemoor parkrun is fun and safe for everyone.

Age Grading

All parkrun events use Age Grading to help parkrunners compare results.

Age Grading takes your time and uses the world record time for your sex and age group to produce a score (a percentage). This score allows you to compare your personal performance against other people's performances even though they might be a different age and a different sex to you - the higher the score the better the performance. The scores can also be compared across different race distances - to allow you to, for example, compare a 5km time against a marathon.

For more information, please see our Support page.

Course Map

Course Description

Two laps of a T shaped course using a tarmac section of the Ely Trail and the Northern Boundary Path of Grangemoor Park. The course is fairly flat, except for short a slope, and of an "out & back" nature, with five 180 degree turns in total. Please keep to the right hand side and refrain from overtaking on sections where you can't see clearly ahead.

We regularly welcome participants with buggies, dogs are less common - your four legged friend will need to be on a short lead and comfortable in close proximity to others with a regular flow of people from the opposite direction (approaching on your left). Feedback from a visually impaired parkrunner & their guide was that they found our course challenging due to sections where they needed to stagger rather than remain two abreast.

The layout of our course means that you will see all other participants, including the marshals, multiple times. This feature is especially popular with groups of friends or relatives of different standards, and those who include some who are choosing to volunteer, because of the opportunities to offer encouragement.


  • There are picnic areas within the park, access to the river for fishing (with a licence from the harbour authority), and a network of trails on the mound with great views from the top.
  • Grangemoor Park has no toilets, some of the businesses in the area have customer facilities which you may be able to use.
  • Bike parking at Grangemoor is difficult, there are no racks and only a couple of structures which would be suitable for temporarily securing your bike to. We are within 500m - 1km of the nextbike stations at Wilcox House, Pont y Werin and the International Sports Village.
  • There are several options for a post parkrun coffee, be aware that some are quite small. Our participants spread out and support a range of businesses including Coffi Co (Bayscape), Costa (in the Retail Park) & Starbucks (Dunleavy Drive and Morrisons). IKEA and Morrisons have customer restaurants where it's possible to have coffee, or a more substantial breakfast.

Getting There

Location of start

The start & finish area are on the Ely Trail where the A4232 passes overhead, with access from Dunleavy Drive. This is 500m - 1km from places that you might park if coming by car, please allow plenty of time.

Getting there by public transport

  • Plan in advance - you may need to leave earlier than you'd think! Starbucks and McDonalds are open for pre parkrun coffee should you need to arrive significantly ahead of when we'll be gathering for the event.
  • Cardiff bus service 9 serves the Grangemoor Peninsular in a one way circuit from Asda to Morrisons and the Sports Village, returning along Dunleavy Drive. It's best to alight at Asda when heading to the event.
  • New Adventure Travel Route 304 from Cardiff to Llantwit Major also serves the stops by Asda.
  • Some Cardiff bus services to & from Penarth (92 & 94) stop close to the Ely Trail at "Brindley Road", about half a mile from our start & finish area.
  • We're approximately 1 mile from Cogan train station, or 1.5 miles from Grangetown.

Getting there on foot

From Asda, walk along Dunleary Drive past the Asda petrol station and the Starbucks Drive Thru, continue until you reach the roundabout, go straight over and onto the Ely Trail, you have reached the Start/Finish area.

Getting there by road

We must stress the importance of parking considerately. Most local car parks are intended for customers of the adjacent businesses and some have stay limits with ANPR enforcement and/or other conditions. One of the agreements we need to keep in order for our event to take place is that participants will not use the small parking area off Dunleavy Drive, or park on any of the pavements or verges nearby.

If you enjoy a decent warm up please think about using one of the locations slightly further away, such as the main Sports Village Car Park between the International Pool and White Water (CF11 0JS) or the open air section at IKEA (CF11 0XR).

Asda have been tolerant of parkrunners using some of the spaces away from their store entrance over towards the petrol station (CF11 0JR), Morrisons also have a large car park (CF11 0JP), do not over stay. The closest car park in front of Starbucks on Dunleavy Drive is fairly small and also needed for their other customers, members of the gym, and staff & customers of the other units.

Please be mindful of the impact of where you park and aim to support adjacent businesses with your custom.

Post Run Coffee

Every week we grab a post parkrun coffee in a local cafe - please come and join us!