I remember that post also, from the lady that was an American who was on the booze & snorkel boat. I don't know how those two go together, but oh well.
I swear I saw a woman interviewed on tv who said she was on the boat with Nat the day she disappeared and saw her later and C and C. She was a blonde, 40's and said she felt upset, like Nat was a relative. She was shaken and said all the girls were very nice. And commented on heer dancing at C and C. That was on tv as well as posted.