Suitable for beginners and families as well as the more experienced.

You can save form-filling and time on the day by pre-registering. This is free and will reserve a map for you. It also saves us effort, so please do so if you can– Map Reservation

Location Scout & Guide HQ, Canonsfield Road, Welwyn, AL6 0QA. OS Grid Ref TL242179
Terrain Mardley Heath is a small but complex woodland, mainly regenerating naturally following gravel extraction in the middle of the last century. A small area of open heathland has been maintained in the northern part of the site. The area is now a Local Nature Reserve owned and managed by Welwyn Hatfield Borough Council, who have kindly given us permission for our event.

Gravel working has left this area with complex contour detail, in addition to the already hilly nature of the site. Public access for walkers, horse riders and cyclists has added a maze of small footpaths. Open areas and the mature remnant former woodland offer fast running, whilst the less mature areas provide plenty of route choice where close contact with the map will be required.

Parking Free parking will be on the road near the Event Centre and around the A1(M) bridge. Space is very limited and it would be greatly appreciated if people can share transport. The local lanes are not suitable for parking, so please do not park there, this is to try to minimise congestion.
Public Transport Bus 300/301 from Hemel Hempstead, St Albans, Hatfield, WGC and Stevenage stops at the bottom of Canonsfield Road roughly every 20 minutes on Saturdays.
Courses Courses for everybody from beginners of any age to experienced orienteers.

Course Distance Difficulty
White 1.3 km Easy – all along paths, control flags whenever you need to decide to turn.
Yellow 1.9 km Fairly easy – navigate along line features such as paths, walls, streams. Some turns with no control flags.
Orange 3.0 km Moderate – start cutting across country, some controls a bit away from line features.
Light Green 3.9 km Harder – a range of navigational skills needed to find controls on any mapped feature.
Blue 5.9 km As hard as we can make it on the area.

You may enter any course and will automatically be entered in the club’s Saturday League unless you ask not to. Please note that you will run significantly farther than the straight-line distances quoted above.

Starts Register from 09:30 to 11:15
Regulars can save time by reserving a map/dibber at
Starts from 10:00 – 11:30. Courses close at 12:30
Fees Non-BO members: Adults £6, Juniors £3
British Orienteering members: Adults £4, Juniors £2, HH juniors £FREE.
Adults accompanying juniors are free. Extra maps, if available, £1.
Punching Sportident punching will be used.
Dibber hire £1.00. Charge for lost dibbers £30.
Map 1:5000 with 5m contours, courses preprinted on waterproof paper. For map of a previous event see Routegadget.
Facilities Enquiries, Registration, Download, Water, First Aid and Toilets will be available at the Event Centre.
The Explorers will be selling cakes and drinks to fund attendance at their jamboree, as they did at out Sharrds Park event.  The cakes were excellent, so please support them.
There is a wooden floor at the HQ, so no muddy or metal spiked shoes inside please.
Dogs Please keep dogs on leads and clear up behind you. No dogs in the event centre..
Safety Orienteering is an adventure sport. You take part at your own risk and are responsible for your own safety.

Longer courses cross a road with little traffic. Take care crossing the road.

Planner Laura Parkes
Organiser Penny Parkes
Controlling  Hugh Wiltshire