The Terror by Dan Simmons

"In the balmy days of May 1845, 129 officers and men aboard two ships -- Erebus and Terror -- departed from England for the Canadian Arctic in search of a Northwest Passage to the Pacific. They were never heard from again."

"The Terror, dives headlong into the frozen waters of the Franklin mystery, mixing historical adventure with gothic horror"

-Publisher's Weekly

Just kidding. It's probably the worst book you could read while on a boat.

Try to watch the water and the islands as much as possible. I'm a little jealous of you and your trip.

ohh.I got one for ya...you should read

In the Heart of the Sea: The Tragedy of the Whaleship Essex
by Nathaniel Philbrick

its the story that inspired moby-dick...it might freak you out for shure

Since you'll be captive on a boat, it's a good opportunity to tackle a large, or otherwise intimidating, book. And, you really don't need a book about shipwrecks, sharks, whales, or anything boat related.

How about Infinite Jest?

Try "Vineland" by Thomas Pynchon. It's one of his mid-length books, probably a week to read and if you haven't read anything else by him it's a pretty good way to start.

Actually, "Moby Dick" is an excellent choice - it's really only the last 20 or 30 pages that anything REALLY horrible happens!

Other nautically-themed suggestions:

"Two Years Before The Mast" Richard Henry Dana's classic memoir depicting his stint as a common sailor on a San Francisco bound trading vessel in the 1830's.

"Passage To Juneau" British ex-pat author (and Seattle resident) Jonathan Raban's account of his solo sail up the "inside passage" between Vancouver Island and the B.C. mainland. Raban's personal narrative is generously interspersed with historical journals from the first expeditions through these waters, most notably those of George Vancouver and his crew during their survey mission to the Pacific Northwest 1792.

"The Life Of Pi" Yann Martel's 2001 Booker Prize-winning fantasy of a young Indian man's survival aboard a small lifeboat adrift for 227 days, with a Bengal tiger as his sole companion for most of his journey.

Three Men in a Boat (To Say Nothing of the Dog), written by Jerome K. Jerome, published in 1889. Also Connie Willis's To Say Nothing of the Dog. For length and comparison and entertainment value.

Try "Kon-Tiki" by Thor Heirdall (sp?) about the proof that ancient man COULD sail the seven seas and have spread civilization across the south Pacific..to Easter Island and beyond. It's fascinating! A combination of adventure, and science-fact from circa 1960!

hmm...maybe "Sunnyside" by Glen David Gold?

The Time Travelers Wife.

Life of Pi.

Not Sail. Or Jaws.

"Jaws" by Peter Benchley or "A Night to Remember" by Lord.
Both are good reads... one is a fiction adventure, the other is researched fact presented as a timeline narrative.