The responsibility of the group, especially the group leader, is to make sure that all members of the group are accounted for at all times. Also to make it very clear to the members that they can't go off and do things on their own. I understand that the Sierra Club has pretty strict rules about this, as did the club I once belonged to for several years.
Of course this may be easier said than done which is why I gave up on groups many years ago!
Edited by OregonMouse (09/01/15 09:22 PM)
May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey