Difficultly and Terrain Star Definitions

Difficulty Terrain
Easy
In plain sight or can be found in a few minutes of searching.
Handicapped accessible
Terrain is likely to be paved, is relatively flat, and less than a 1km walk is required.
Average
The average geocache hunter would be able to find this in less than 30 minutes of hunting.
Suitable for small children
Terrain is generally along marked track, there are no steep elevation changes or heavy undergrowth. Less than a 3km walk required.
Challenging
An experienced geocache hunter will find this challenging, and it could take up a good portion of an afternoon.
Not suitable for small children
The average adult or older child should be OK depending on physical condition. Terrain is likely off-track. May have one or more of the following: some undergrowth, some steep elevation changes, or more than a 3km walk.
Difficult
A real challenge for the experienced geocache hunter – may require special skills or knowledge, or in-depth preparation to find. May require multiple days / trips to complete.
Experienced outdoor enthusiasts only
Terrain is probably off-track. Will have one or more of the following: very heavy undergrowth, very steep elevation (requiring use of hands), or more than a 15km walk. May require an overnight stay.
Extreme
A serious mental or physical challenge. May require specialized knowledge or skills to find or open the geocache.
Extremely challenging terrain
Requires specialized equipment (boat/kayak, 4WD, rock climbing, SCUBA, etc.) or is otherwise extremely difficult.