I haven’t circumnavigated it but but I’ve launched from Klemtu and paddled north and then west through the passage between Swindle and Princess Royal. I can tell you the launch/camping details of that area if it’s helpful. I do know that Don Griffiths, a long time (former) member, did it some years ago. I think I still have his contact information. I could try to put the two of you together if you’d like.