Done this ride in 2011 oct set off at 12 noon wat was way to late ,done route clockwise from hotel , anyway to cut it short no one seems to mention the three river crossings . We couldn’t cross the 2nd last one 4 mile or so from hotel , it was now 6pm our mistake , which we made lots on that day ,was we waded and searched for 3hrs to cross river realising we couldn’t cross we decided to ditch bikes and walk back along track to a bothy 5mile or so back , I had a little Aldi light wat was obviously not up for the task but worked well even after me getting swept away at one point in the rising burns , wat wer now up to a metre deep at some points, anyway with back injured and due only to the fact our other three members had proper Mtb lights we managed to return to bothy , 1st light we walked back to bikes ,we managed in light to get across river and headed back . Don’t try this in heavy rain these streams fill up very quickly and in no time at all ,a good adventure can turn life threatening , mountain rescue had been called but they started search in opposite glen , going to do it again this year but will do in summer with plenty of light and we’ll take note more of weather , much more prepared now when we tackle some epics due to this experience .