This was quite a nice little curcuit, and is a variation on a route described by Paul Phelan in his wonderful "Connemara and Mayo, a walking guide". Myself and a friend completed it on a dry and sunny day in February. It starts out along a plasant path which is part of the western way, then you ascend via some marshy patches in a nnw direction. The scamble to the top is quite a nice challenge if you take this approach, with some very steep and rocky sections requiring some grade 1 scrambling, with the choice to go for some very short grade 2 or even 3 sections if it takes your fancy. Views from the upper ridge were stunning in all directions, and we were blessed with clear skies to our s, se, and e. After reaching the summit, we headed nnw again and then descended sw towards the lake. The ground underfoot along the saddle, and while descending from the saddle, was quite unpleasant, being slippy and wet due to months of rain. Both of us fell numerous times and thus decided not to continue south along the eastern lake shore (as described in Paul's book), but to head for the road instead. If I was doing this route again in winter, I would actually go back the way I came after reaching the summit, as it's a very pleasant hike with spectacular views in all directions and the western way is always a pleasant way to begin or end a hike in these mountains.
For just three hours and under 7k, this hike gives many pleasant rewards for minimal effort.