Russ,
I am a fan of nautical history novels.
There is a series by Patrick o'Brian that I was not able to put down.
The setting is the late 1700's - early 1800's, and follows the adventures of a young commander and post captain in the British Navy. The first in the series, I believe, is titled 'Captain and Commander'.
I found this series to be exciting, educational, comical, and provided a real taste of what life was like on a British vessel during the Nepolianic era.
last I heard, Russel Crowe was making a movie based on the main character of these books. It was supposed to be released this summer.
As of last october the movie was going to be titled 'The Far Side of the World'.
There is also a series by James Nelson which is set during the pre-American revolution era, which follows a spunky young American merchant captian who gets roped into helping to form a navy for young America. This series is a great read, but it's not as rich, historically speaking.
Of course, the Horatio Hornblower series is also pretty good.
Have fun on your vacation!