@Planet13 - I can't remember exactly when I made changes, but I've removed all syndicated hotel pages and any attractions where the description was submitted by the owner. All that remains are pages written by me, mostly my photography and my videos, so it's squeaky clean.
I lost about 80% of referrals on Oct 14th. Prior to this traffic had grown and bounce rate was really low. I suspect the mistake I made was to allow Googlebot to spider the syndicated descriptions, which I had previously blocked.
Has anyone had success by moving their content to a new (old) domain? This is what I'm considering now.