White is the easiest level of course, suitable for young beginners. Controls are fairly close together, and usually at path junctions, or junctions of paths and streams or walls; distance is typically 1-1.5km; the best route should be obvious, along paths, and require very few decisions.
Yellow is slightly longer and harder than White. Controls may be further apart, and are placed at junctions or obvious features; distance is typically 1-2.5km; the best route should be relatively obvious, but not necessarily along paths.
Orange courses are of medium difficulty and distance, suitable for adult beginners - controls may be 50m from paths, and reading map detail such as contours may be necessary; distance is typically 2-3.5km; you may have several choices of route - some of which may be across terrain rather than along paths.
Light Green is the easier end of difficult courses - controls may be on small features and contour shapes away from paths, but there will be a catching feature to stop you going too far if you miss it. Lengths are typically 2-4km.
Wheelchair courses are typically White courses where the path surfaces are suitable for wheelchairs; controls are visible from the paths; lengths are typically 1-1.5km.
Star and Loop courses are where the group leader chooses a central base, and sends the students out to collect a single control, or pair of controls, and then return to base. They are particularly suitable for very young beginners.
Score courses are where you visit as many controls as you can, in any order you choose, usually within some kind of time limit - or see who can visit all the controls in the shortest time.
The small area Brereton Heath North map offers courses for wheelchairs and young beginners:
The Short White/Wheelchair course (1km, 7 controls) goes around the woods West of the lake.
The Long White/Wheelchair course (1.2km, 8 controls) goes round the lake anticlockwise.
The Yellow course (1.2km, 9 controls) goes round the lake clockwise.
There are also 10 extra controls which can be added in for Stars and Loops exercises, possibly best from a base in the open area North of the lake.
The full area Brereton Heath map offers courses up to intermediate level:
White and Yellow courses are the same as the Short White and Yellow courses for Brereton Heath North.
The Orange course (2.2km, 8 controls) goes round the lake and further into the woods.
The Light Green1 course (1.9km, 6 controls) and Light Green2 (2km, 8 controls) course cover the whole area, but in opposite directions.
There are a further 3 controls which can be added in for a Score course or to extend other exercises.