A few miles south of Oak Harbor, at anchor in Mill Creek, Nancy and Dave Gohlke and their sons Christopher, 13, and Josh, 10, had finished the most pressing jobs aboard their Morgan 41 ketch, Liberty, on which they live and cruise full-time. Based out of Houston, Dave, 46, and Nancy, 43, bought the boat in December 2003 with literally little more than the dream of cruising, since they'd never even sailed before. Two months later, they took their first sailing lesson, and since then-first over a six-month trip, then over the last two years-they've cruised thousands of miles through the waters off Mexico, Guatemala, Belize, the Gulf Coast, the Keys, the Bahamas, and the U.S. East Coast. They were hanging out in Mill Creek to visit friends but also to attend the U.S. Sailboat Show in Annapolis, where they spent their time probing the possibility of switching to a catamaran.