Posted this in another forum but thought i'd get an insight from the wise minds lurking here. The idea is focused around whitewater (class C) canyoning but could be transposed to a technical dry canyoning environment just as easily. We are all (hopefully) aware of the dynamic nature of risk assessment when it comes to the ever changing canyon environment. But, how does this risk assessment process change when the group dynamics is examined? Take the following example; 2 experienced whitewater canyoneers in an unfamiliar canyon and how they approach an obstacle, lets call it a stacked waterfall with a pour-over that needs needs protection, how do they approach the situation. What risks are they considering? How do these risks change if the group size is increased to 5 experienced canyoneers? How does the perceived risk change in relation to the actual risk? What happens if one of the 5 has a significantly lower level of experience? does the group "carry" this member or does it lower itself to the acceptable risk level for the inexperienced member?