In reply to THE.WALRUS:
There is a very good camping spot in the Coire below the Rosa pinnacle beside a obvious giant triangular wedge shape boulder. It's like a lawn oasis. A little path at the side takes you to water draining sub Rosa gully about 50m away. I posted a pic recently with a cloud inversion.
Walking up to the route there is a path but can be difficult to locate below. It's near the right side of the hanging coire above. Otherwise it can get a bit time consuming route finding through the slabs and steep gravel and slime.
Bikes are free on the ferry and can get you all the way to the Glen Rosa footbridge saving a fair bit of walking. Otherwise a taxi from ferry to campsite is £8. Book it before travelling. Bus will just get you round the bay. Just over a mile.
Take a least 3 1600mm slings. Big hex, big cams not really required. Mid range. Climb in 2 pitches probably best for a 50m single. Belay just before the traverse right. Big spikes and comfy. Common mistake people make is to miss the drop down up the flake pitch and carry on up the flake system. Should be a rounded spike at it.
Finish up 3 tier chimney and SRD at least to the terrace by far the best route off. The traverse round the side is mince. Its awkward to start but good pro and amazing position along the upper easy ridge.
If you want to descend to the start of route. Drop down gully alongside Calibans Creep. Cross the easy slabs below the first proper pitch of Calibans Creep. This route is worth doing if you can and really just 2 climbing pitches and rest a scramble.