My original intention was to walk all three paps, Beinn an Oir, Beinn Shiantaidh & Beinn a Chaolais but my old man decided to accompany me, being in his 70s he informed me he wouldn't manage all three so I decided to climb to the saddle of Imir an Aonaich, where I would 'nip' up & down Beinn Shiantaidh before we both climbed Beinn an Oir. I would use the same method for Beinn a Chaolais - however with all best laid plans & despite a clear start the weather gods played their hand. By the time we reached Loch an t-Siob the cloud was beginning to build and unfortunately Beinn an Oir didn't reveal any views - the wind was brisk but not enough to clear the cloud! I was surprised to come across several ruined huts and a well made track to the summit which I have read where connected with the 1764 experiments on the affect of altitude on the boiling point of water.
The approach from the three arched bridge to Loch an t-Siob is horrendously wet, leaving the path to avoid the bogs just leads to more bogs!!!
A glimpse of Beinn Shiantaidh & the Sub 2000 of Corra Bheinn, clear of cloud from the boggy path...