It is really the most difficult and challenging type of trekking which provides real adventure of mountain climbing to any trekker. This type of trek includes rarely visited area, more than 8 to 9 hours walking per day. So, the well trained trekkers with strong physical appropriateness are highly required.
For this type of trek a high level of fitness is required, usually 6-7 hours daily walking including high passes between 4500 to 5700m.
Relatively low altitude and moderate level trek, crossing passes of not more than 4500m and usually 5-6 hrs walking daily.
This is a pleasant and easy walk, usually 4-5 hrs walking daily at elevations below 3500m.
Listed peaks are graded using the Alpine Grade system. The overall seriousness of the complete route based on all factors of the final approach, ascent, and descent—including length, altitude, danger, commitment, and technical difficulty. This system originated with UIAA Roman numerals; it is now generally seen with French letters and is increasingly being used worldwide. Grades described below are for the 'classic' route ascent lines. Alternative routes will obviously be of a higher grade.
Facile/easy Rock scrambling or easy snow slopes; some glacier travel; often climbed ropeless except on glaciers.
Peu Difficile/a little difficult. Routes may be longer at altitude, with snow and ice slopes up to 45 degrees. Glaciers are more complex, scrambling is harder, climbing may require some belaying, descent may involve rappelling. More objective hazards; Some technical climbing and complicated glaciers.
assez difficile (fairly difficult). Fairly hard, snow and ice at an angle of 45-65 degrees, rock climbing up to UIAA grade III, but not sustained, belayed climbing in addition to a large amount of exposed but easier terrain. Significant objective hazard. Steep climbing or long snow/ice slopes above 50º; for experienced alpine climbers only.
There is no official international canyoning grade system, but this grading based loosely around this. There are a few factors to consider when grading a canyon. Remoteness and nature of terrain. Difficulty of rescue. Time of year. Flash flood risk. Water flow. Difficulty of exit and escape. The cold. Abseil points or lack of! Length of canyon trip and access. Lack of documented reference. Snakes and general monsters.
Grade 1: Very Easy
No abseils, not much thinking involved – just a fun time in a safe fun place.
Grade 2: Easy
Simple access and exit, no risk of flash floods, maybe some basic rope work, may involve fun swims.
Grade 3: Moderate
Abseils, definitely some water, maybe simple navigation, trekking and scrambling, could involve a big day out.
Grade 4: Difficult
Maybe remote, more water flow, navigation and good abseil skills a must.
Grade 5: Very Difficult
Serious undertaking, remote and trackless terrain, maybe multi day trips, risk of flood and loose ground, maybe eddies, stoppers, underwater ledges, difficult rescue, not a place to get stuck.
Grade 6: Extreme
Exploration, little chance of rescue, variable water levels, remote and trackless terrain, a harsh and demanding environment, no way out of canyon in a flood. For experts only.
The International Scale of River Difficulty is an American system used to rate the difficulty of a stretch of river, or a single (sometimes whitewater) rapid. The scale was created by the American Whitewater Association for the purpose of evaluating rivers throughout the world, hence the "International" part of the title. The grade reflects the technical difficulty and skill level required associated with the section of river. The scale is of use to various water sports and activities, such as rafting, riverboarding, whitewater canoeing, stand up paddle surfing, and whitewater kayaking.
Grade I: Easy
Very small rough areas, might require slight maneuvering. (Skill level: very basic)
Grade II: Novice
Some rough water, maybe some rocks, might require some maneuvering. (Skill level: basic paddling skill)
Grade III: Intermediate
Whitewater, small waves, maybe a small drop, but no considerable danger. May require significant maneuvering.
Grade IV: Advanced
Whitewater, medium waves, maybe rocks, maybe a considerable drop, sharp maneuvers may be needed.
Grade V: Expert
Whitewater, large waves, large volume, possibility of large rocks and hazards, possibility of a large drop, requires precise maneuvering.
Grade VI: Extreme and Exploratory Rapids
Class 6 rapids are considered to be so dangerous that they are effectively unnavigable on a reliably safe basis. Rafters can expect to encounter substantial whitewater, huge waves, huge rocks and hazards, and/or substantial drops that will impart severe impacts beyond the structural capacities and impact ratings of almost all rafting equipment. Traversing a Class 6 rapid has a dramatically increased likelihood of ending in serious injury or death compared to lesser classes.(Source: Wekipedia)
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