Here is the range of books from the sites where each boat travels:
Click on the pictures to see the books.
Frankland Island Cruises Ocean Free Ocean Freedom Other books
All of the books are for sale at: http://www.lulu.com/shop/search.ep?contributorId=1069871
except for Normanby Island which is at: http://au.blurb.com/bookstore/detail/2406046?redirect=true