The Inside Passage stretches from Southeast Alaska through British Columbia to Washington State - some 1,000+ nautical-miles.
Here is a good detailed map: (http://www.google.com/imgres?hl=en&sa=X&biw=1366&bih=645&tbm=isch&prmd=imvns&tbnid=NXJl-ImdZoy-mM:&imgrefurl=http://mappery.com/map-of/Pacific-Northwest-Inside-Passage-Map&docid=2GJstFBTZKGBJM&imgurl=http://mappery.com/maps/Pacific-Northwest-Inside-Passage-Map.jpg&w=1666&h=2529&ei=kuASUMCRMMnq0gGQjYHQCA&zoom=1&iact=rc&dur=375&sig=113964948636091309931&page=2&tbnh=137&tbnw=90&start=21&ndsp=25&ved=1t:429,r:0,s:21,i:171&tx=45&ty=50)
What is along the Passage? E-V-E-R-Y-T-H-I-N-G W-O-N-D-E-R-F-U-L! People, places, wildlife, Mother Nature...
Cruising through the Inside Passage is really what has made Alaska cruising so popular. This trip captures so much of what people love about Alaska. There are glaciers the size of Rhode Island. Misty rain forests and ghostly blue fjords. And spirited communities that celebrate their varied heritage. Be sure to take in every view as you sail through one of the most beautiful parts of the United States we call Alaska!
Kayaking the Inside Passage - http://kayak-insidepassage.blogspot.com/
Be sure to checkout the interactive map-pix at the above url
and the list goes on...