You can pretty much head in a direct line from the top of Knockrower to Shaking Rock, just detouring slightly to avoid the occasional small cliff. The re-ascent up just makes the Mountain Views criteria - 31m by my GPS.

The summit is flat and boggy. Hard to determine the exact high point, there are 2 or 3 candidates. I wonder is the boulder in the picture the rock that shakes? It was fairly stationary when I as there. To descend and return to Galway's Bridge I took the route 'Kenmare Uplands' as described by Kevin Corcoran in his book 'Kerry Walks'. This takes you past the Poulagower falls and follows the Galway's river back to the Kerry Way and the Old Kenmare Road.
Kevin describes this part of the route as "difficult and extremely demanding, and if the river is in flood it can be tortuous!" It had been exceptionally dry when I did it, and it was bad enough. If you're looking for Wilderness, remoteness and isolation this will be right up your street. I doubt even Simon's magic phone would get a signal here. Linkback: https://new.mountainviews.ie/summit/822/comment/3857/