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Having read various reports, I decided that the approach from Loch Turret would be more interesting than from Glen Lednock.
I set off with my 12 year old son and his friend at about 11am with the aim of walking up the east side of the loch and then returning down the west side via Meall na Seide and Carn Chois. However, the weather worsened significantly as we were on the final approach to the top with strong winds, rain and heavy mist; as I had the two boys with me, I reckoned it would be too dodgy going down the west side which has some steep drops, so we returned a similar way but with a small detour over the north west ridge. As luck would have it of course, the weather improved dramatically at that point but there was no way the boys were up for a return to the top then down the west side !
The walk begins in the car park at the south of the loch up a good track which extends beyond the end of the loch. It stops at Lochan Uaine at which point you have a choice. You can head across boggy grassland north westwards, then west along an old fence line, then steeply up north west to the ridge (when it started raining and got very misty for us with no shelter until the top) or head northerly to the bottom of the north east ridge and then west up to join the main approach to the top. After that it's a fairly straightforward route to the top. If the weather's bad, there's little shelter until you get to the top where there's a circular dry stone wall as in the pictures below. We headed up the former route and returned on the latter.
It's not a difficult walk and the ascent is only just over 800m but it is a fairly long pleasant walk.