This is where I camped between the YH and Peters Rock.
The grass had to be flattened before hand but very comfortable. It was surprisingly not near any running water but apart from that a fine spot. There was a bit of a commotion on the other side of the loch when the station pub bar shut in the early hours. I think folk were driving back from the station "bar" to the lodge at the east end of Loch Ossian - though my memory is a bit vague.
Loch Ossian CampingSomewhere round about hereThere will be plenty other options but this was a good enough spot not too far from the station meaning we could get rid off the load sooner rather than later.
All the best.