This is an informal event. All orienteers welcome. The café should be open and HAVOC members and other competitors will be able to meet there for a post-event chat.

The courses offered will be those used in June, exactly six months earlier, but may have one minor change. If you competed then, why not try to beat your previous time in very different conditions, or try another course? In case anyone chooses to rerun their June course and perhaps gains an advantage, please can everyone treat this event as a friendly, informal get-together rather than a serious competition. We do intend to produce results but these will be for information only, no league or ranking points are at stake.

Happy New Year. 



Nearest town: Ingrave, Brentwood

Directions / Parking

From the M25 J29 junction:  Take the A127 east for 3 miles.  Turn north at the A127/A128 junction towards Brentwood; after a quarter mile turn left into the country park indicated by a brown and white tourist sign.  Event registration will be in car park which is hard standing.  £2.50 pay & display winter car park charge.


Toilets and café are adjacent to the car park. The café should be open and competitors are welcome to meet there after the event.

Start & Finish near the car park.

Terrain Description

Thorndon Country Park South is a mixture of established and re-planted woodland, streams and a lake, open meadows and pasture fields with some steep slopes and contour detail.  

Registration & Start Times

Registration                 10:15 am to 11.30 am

Starts                           10:30 am to 11.45 am 

Courses close              1:30 pm 

Course Information

Orange course (3.5 km medium)

Light Green course (3.9 km harder)

Green course (4.8 km hard)

Blue course (7.3 km hard and longest) 

Explanation of colour courses

  • White are very easy with all controls on paths. They are mainly used by 6-10 year olds and family groups.
  • Yellow use simple linear features like paths, walls and streams. They are mainly used by under 12’s and family groups.
  • Orange progress to basic use of the compass and route choice. They are ideal for novice adults or experienced youngsters.
  • Light Green are ideal for improvers as the navigational difficulty begins to increase and uses simple contours and point features.
  • Green are used mostly by experienced under 18’s and adults wanting a short but challenging course with a very hard navigational difficulty.
  • Blue are a longer, more physically demanding course in comparison to the green. The distances are more varied between controls and the course attracts experienced orienteers.
  • Brown & Black are very physically demanding and have a very hard navigational difficulty. They are for experienced orienteers only.
  • Score means visiting as many controls as possible in any order in a specific time, like 45mins.

Entry Details

HAVOC seniors:        £2

HAVOC juniors:         free

Seniors/groups:         £4   (no discount for British Orienteering members)

Juniors (under 21):    £2

SI ‘dibber’ electronic timers will be used.  SI ‘dibber’ hire fee 50p (free to HAVOC members) or use your own. 

We have had 20 maps of each course printed.  Please email the organiser, Janet Biggs, at to reserve a map.  We wil be printing a few more maps to meet any late demand. There are currently spare maps for all courses however we cannot guarantee a map without a reservation.  

Contacts / Officials

ORGANISER:          Janet Biggs (HAVOC)  

PLANNER:               Paul Beckett  (HAVOC)  

Dogs allowed?

Dogs welcome if under control.

Safety and Risk

A comprehensive risk assessment will have been carried out by the organiser, but participants take part at their own risk and are responsible for their own safety during the event.

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