Captain of the ship was a retired doctor and a local (can't remember his name unfortunately). He was extremely knowledgeable and friendly. His laid back attitude and friendliness made the entire trip wonderful.
The guy speaking and giving the ghost tour (Ed Macy, not the captain) had a nice sense of humor to keep you interested in his stories. He also had a little bar where he sold wine and beer in between stories.
Overall it was a very relaxed and beautiful evening with some interesting ghost stories. I would highly recommend this to anyone who has never done it before!