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 Cudmore Grove, East Mersea. The course is run on a mixture of grass , gravel, trail paths, tarmac paths and beach . 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 Mersea Island 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. Health advice about running can be found at the excellent Runners' Medical Resource website (although this external website focuses on preparation for a race and does not describe parkrun events).
  • 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 Mersea Island 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

The course starts adjacent to the car park heading north, then east through a copse to the sea wall. It then runs along the cliff edge and through a small copse before turning sharp right at the end, running alongside the car park for 50 yds before turning right and returning through the park along the mown track, turning left to run to the right hand side of the Pill Box. The route then completes the loop and a second and third laps are completed. After three laps, the route turns sharp left towards the finish straight which is a few metres after the start line. The course is largely flat with some very gentle slopes. There are some narrow sections through the copse.


Public toilets at the car park, including disabled and baby changing facilities. There is also a café. Car parking available at venue - charge is £2.20 an hour.

Getting There

Location of start

The run starts adjacent to the car park.

Getting there by public transport

There is no viable public transport option.

Getting there on foot

Access is possible by foot by road or some public footpaths. The venue is a significant distance from housing.

Getting there by road

If using satnav, the nearest postcode is CO5 8UE

At the southern end of the Strood crossing onto the island, leave the B1025 and follow the sign to East Mersea for a total of 2.9 miles. The road turns sharp left and on the right side is Bromans Lane, signposted to Cudmore Grove. Follow this narrow road for 0.4 miles to the end where you will see the entrance to the car park. Drive as far as possible into the car park, parking near the café.

Car parking available at venue - charge is £2.20 an hour.

Post Run Coffee

Every week we grab a post parkrun coffee in the Café at Cudmore Grove - please come and join us!