So far, all of my trips through the San Juans has been via boat, from my 19' Sea Ray (
The Ultimate Small Boat Adventure, only $15.95, Barnes & Noble, Amazon

), through a chartered 34' Nordic Tug (our favorite) to a 36' Grand Banks. I learned "big boat" ops in a 37' Bayliner with twin diesels, but that meant a bit of relearning, since the other boats were single screw only--that transition is a bit like transitioning to a different airplane, learning the nuances of something different. We love the area, and we love boating in it. I'd never get Marilyn to fly the islands, but I'd love to do it myself. Of course, ideally that would be in a seaplane, because there are oodles of places throughout the islands to use one.
Cary