I had the chance to sail with Alvah and Diana last February as they were shaking down Roger Henry for the trip. The boat is strong, sea-tested and immaculate. She's also stacked with travel books, dictionaries, history tomes and natural-history guides for all the countries she'll call on. For Siberia is only the outbound target for the voyage: the three-year itinerary has been drafted to include only new landfalls for the couple, and includes New Caledonia, Vanuatu, the eastern Solomons, Japan, Russia, Alaska, Canada, and Fiji. Diana, a craftswoman with a love of textile arts, is focused on the intricate basket weaving of the Banks Islands, and the ancient indigo cloth of Japan. But Alvah says they're budgeting most of their time for remote atolls in Polynesia and Micronesia, the tropical Pacific hideaways most long-distance cruisers only dream about.