Please do not attend parkrun if you display any COVID-19 symptoms

The Course

The course is 5000m (5k) long. This has been accurately measured by us with a professional measuring wheel. The course is at Penallta House, Caerphilly. The course is run on a mixture of tarmac paths and trail 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

The Penallta parkrun is a fun, free event organised by volunteers for the benefit of everyone. We wish to make the run as safe as possible, so runners, 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 a dog, but please keep the dog on a short lead or short harness and under control throughout the event. Please also review the parkrun support page article about running with a dog at parkrun events.
  • 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 Penallta 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

This is a one lap course with two out & back sections, within Park Penallta Country Park, utilising route 47 of the national cycle network. Runners are asked to keep on the left side throughout. It’s mostly flat terrain with just one short rise (known as Bea’s Hill) and mainly on tarmac.
Starting by the Tredomen Park entrance to Penallta Park the path rises gently North West until a left turn over a railway bridge. This takes runners out and back up Bea’s Hill. Upon returning to the bridge the path continues North West eventually reaching the second out and back spur alongside the railway. Runners are once again reminded to keep left though the open gate into this section. Once this is completed runners turn left through the willow tunnel, around the lake and emerge back on to the outgoing path turning left to head for home. At this point the route simply heads runners South East back to the start point with the last 1 km being a gentle downward slope.
At the start point there is a large map board where the parkrun route is clearly visible.


Free car parking & toilet facilities are available at Caerphilly Borough Council buildings.

Getting There

Location of start

The run starts by the Tredomen Park entrance to Penallta Park .

Getting there by public transport

Service C16 - Caerphilly to Nelson, Service C17 - Bargoed to Caerphilly

Getting there on foot

From Ystrad Mynach station follow the access road to the A472. Turn left and walk 100m along the road. The park is signposted on the other side of the road. From Hengoed Station follow Route 47 “The Celtic Trail” for 2 miles west to Penallta Park.
If coming by bike, Route 47 “The Celtic Trail” runs through the park.

Getting there by road

Follow the brown tourist sign for “Penallta Park” from the Tredomen roundabout on the A472 at Ystrad Mynach. Parking is available around the Caerphilly Borough Council building “Ty Penallta” on Tredomen Park.

Post Run Coffee

Every week we grab a post parkrun coffee at Tesco, Ystrad Mynach - please come and join us!