(Easy) Opportunity for large number of participants, including those with reduced ability to walk/cycle on well- marked and evenly formed tracks. Formed tracks may have a few steps. Should not be steep. Suitable for beginners. Distance should not exceed about 10km.
(Easy-Medium) Easy activity, mostly on tracks of low gradient. Opportunity to walk/cycle easily in natural environments on well-marked tracks. Tracks should not be steep. Distance should not exceed about 15km.
(Medium) Medium activity with some hilly sections and/or rougher terrain. Opportunity to walk/cycle on defined and distinct tracks with some steep sections requiring a moderate level of fitness. Suitable for fit beginners. Distance should not exceed about 20km.
(Medium-Hard) Steeper, rougher terrain and may have off-track sections (no more than one quarter of the walk) or a longer distance track walk. Opportunity to explore and discover relatively undisturbed natural environments mostly along defined and distinct tracks. Tracks can be steep. There may be short sections of rock scrambling involved. Leaders should have map reading abilities and/or ability to use a compass. Distance depending on circumstances. Not suitable for most beginners.
(Hard) Off-track or difficult terrain. Opportunity for walkers with advanced outdoor knowledge and skills to find their own way along often indistinct tracks or off track in remote locations. May include steep sections of unmodified surfaces. There may be rock scrambling, creek walking and river crossings involved. Distance should not exceed 30km, but may be short and difficult. Not suitable for beginners.
(Very Hard) Strenuous off-track walk or very long distance. Opportunity for highly experienced walkers to exploratory remote and challenging natural areas without reliance on managed tracks. Terrain may be steep, uneven and no track. There may be rock scrambling, creek walking and crossing involved. Distance covered is unlimited, but may be short and difficult. Only for experienced walkers and not suitable for beginners.
Exploratory Is unknown to the Leader and while every effort has been made to grade the activity appropriately, there may be some unexpected aspects which may increase the difficulty of the walk.