I hiked in and scouted elora for about 3 hours today while it was at 135 m3/s.
The log is above the chute right before a river wide huge wave. The log is just river left of center and would be difficult to see while boat scouting. At this level the wavetrain upstream of the high brige was flooded, but the hole downstream of the high bridge (I am assuming this is the troll hole) was an exploding nightmare! Even from the bridge this looked epic and could easily compete with anything Ottawa has.
In the end with the water temperature and the box canyon consequences the 2 of use ended up walking away to live another day, but boy it sure looked fun.
After what I saw today if the water stays high make sure you scout it before you run it, and for scouting I would bring a rope since the banks of the conservation area are a complete ice rink and with the coming cold weather will stay that way for a while. In certain areas it would have been nice to have my harnes and a figure 8 or at the least a pair of crampons.
For those that have the skill, have a blast and play safe