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West Anglian Orienteering Club

Park-O and Colour-codedTherfield Heath - UNLIKELYSat 27 February, 2021

Near: Royston
Level of event: Local
Type of event: Race

Location Info

* Postcodes are not very precise in some areas, so don't rely on them for an exact location.

Update 5 January 2021

In view of the current nation-wide lockdown it looks unlikely that we will be able to proceed with this event on the intended date of 27 February (the event was originally scheduled for November 2020 and has already been rescheduled once due to coronavirus restrictions).

If restrictions are lifted mid-February, it may be possible to go ahead. We will make a definite decision nearer the time of the event. This web page will be updated as soon as there is any news to report on the event status.

If the event does go ahead, details will be as follows:

This event will offer the usual Park-O courses along with a range of longer and more technical courses for orienteers with more experience and for those aiming to progress.

Pre-registration or pre-entry is essential - there will be no entries on the day for any of the courses.

You will be able to register for Park-O courses (White/Yellow/Orange; Short Medium Long) at Entries will not be opened until it is decided that the event will go ahead. Anyone who entered the November event will need to enter again (unlike the longer courses, no payment is taken in advance).

You can enter longer courses on Fabian4. Entries are not open at present. Anyone who has already entered and paid for the event when it was scheduled for November will have their entry carried forward for the new date.

Park-O Series Info

Our Park-O events are an easy way for juniors and adults to try orienteering. Based in parks around Cambridge, each Park-O takes place on a Saturday afternoon 1pm-3pm once a month during the school year.

What happens at Park-O? Click here to find out

Park-O How-to Guide

Read more about this series

Directions / Parking

Therfield Heath is adjacent to Royston, which is easily accessible from the A10 and from the M11 and A1M via the A505.

Royston has a rail station, and the journey from London is less than 50 minutes.  The Sports Centre is approximately 15 minutes walk (~1km) from the station.

Parking will be in the Heath Sports car park. Postcode for SatNav: use SG8 5BG

Course Information

A range of colour-coded courses will be on offer from White to Blue, incorporating the Park-O courses.

Controls will be set up in SIAC beacon mode, allowing non-contact punching for those with SIAC dibbers.

White (Park-O Short)
very easy ~1 km

Yellow(Park-O Medium)
easy ~2 km

Orange(Park-O Long)
moderate ~3 km
Light Green harder ~3.5 km
Short Green hard ~3.5 km
Green hard~4-5 km
Blue hard ~6-8 km

Course distances may be slightly shorter than typical for East Anglia, to compensate for the climb involved.  Please note that the Blue course involves a road crossing and for that reason is limited to entrants aged 17 and older on the date of the event.

There is a golf course on Therfield Heath, and it is very important that orienteers keep off the course, marked as out of bounds on the map by purple hatching.

Please maintain social distancing throughout the event, moving away from controls as soon as you have dibbed and waiting for others to move away from the controls before you dib.

Entry Details

We cannot accept entries on the day due to the need to comply with coronavirus distancing guidelines and British Orienteering policy.

There are different arrangements for entering, depending on whether you are running a Park-O course or a more technical course (Light Green and upwards).

Park-O courses

For entry fees for the Park-O courses, See Park-O page.

You must pre-register to take part in this event, which you need to do at WAOC entries at Registration will open a few weeks before the event.

You will be allocated a hire dibber, if you do not have one, and you may choose your preferred start block time. No payment is required until you turn up for the event.

If you haven't been before, please read the information on our Park-O page so that you know what to do - we will have officials around to help if needed.

Colour-coded courses

Pre-entry for colour coded courses Light Green and upwards will be through Fabian4.

Enter Online

Priority for entries will be for WAOC members, including those who entered when the event was scheduled for November 2020. Remaining entry slots will be open to all.

When you enter you must self-select your 15 minute start window.

Entries will open once the event status is confirmed. Entries will close 1 week before the event, or earlier if the event becomes full.

Please note that overall numbers of entrants will be limited in order to help us comply with coronavirus guidelines.

Entry fees

Seniors (BOF members)£8
Seniors (non BOF)/ Group£10
Juniors (Under 21) /Students

Entry fee includes dibber hire.

Registration and Start Times

Details subject to change. The following details are provisional - to be confirmed.

Starts for Park-O courses will operate between 1pm and 3 pm, but please select a start slot which allows you to finish before 3:30pm: If you wish to do the long (Orange) course, you need to start by 2:30pm, unless you have sufficient experience that you will be able to finish before 3:30pm. Please only come to the start in your 15 minute start window.

Starts for colour coded courses will run between 12:30 pm and 2pm.

Courses will close at 3:30pm. This applies to all courses, Park-O and colour coded.

Terrain and map details

Mainly open heath land with some woodland.  1:10,000 map with 5m contours.

Longer courses run close to the Golf course on Therfield Heath.   Courses are planned to minimise associated hazards, but participants must not run across fairways, greens or bunkers (marked OOB on map).  You are advised to keep an eye out for golfers.

There may be sheep grazing on part of the Heath.  

Dog restrictions

It is important that dog owners keep their dogs on leads when near sheep.


Portable Toilets will be provided. Please use these rather than the Sports centre toilets, to avoid crowding. If you do enter the Sports Centre, please note no muddy footwear allowed inside.


We are grateful to the Conservators of the Heath for their permission to hold this event.


People should NOT attend any this or any orienteering event:

  • If they are unwell with a cough, fever or other respiratory symptoms.
  • If they have been in close contact with a suspected or confirmed case of COVID-19 until they have completed the prescribed quarantine period, even if they are completely symptom free.
  • If they have returned from any overseas country until they have completed the self-quarantine period for 14 days, even if they are symptom free.
  • If they are undergoing COVID-19 testing, until they have received negative results and are symptom free.
  • If they have been advised to stay at home by a health professional.

If you have been asked to isolate by NHS Test and Trace because you are a contact of a known COVID-19 case, do not exercise outside your own home or garden and do not exercise with others. We also advise competitors who fit within the higher at-risk groups to take particular care and/or make decisions on attendance with due consideration to the risks associated with COVID-19.

Contacts / Officials

Planner: Peter Duthie (WAOC)

Controller: Bruce Marshall (WAOC)

Organiser: Helen Hague (WAOC)

Important Event Information

Safety and Risk: A risk assessment is carried out by the organiser in advance of each event, but participants take part at their own risk and are responsible for their own safety during the event.

Insurance: Please note that if you have participated in three orienteering events/activities and not joined an orienteering club that is a member of British Orienteering then you are not covered by our public liability insurance.


WAOC process entrant information on the basis of legitimate interest to produce competition results, to provide participation and results information to British Orienteering, and we retain details for a period to meet our insurance requirements.  Published results may include (but not limited to) name, any club affiliation, race times and age group. Read our data protection page for further information about how we look after your personal information.


We may sometimes publish photographs of event participants in news items or publicity.  At events where we have arranged for photography we will advertise this at the event and in advance in the event details.  

We aim always to obtain the permissions of parent or responsible adult before we publish any picture showing a junior participant as the main focus.  Although we cannot guarantee that an event photographer will not take photographs of any given individual, we will do our best to avoid publishing images of individuals who have told us they do not wish to be photographed.

Read our data protection page for further information about our policy on photography and use of images.