Alex and David Giovannini found a sponsor for a sail through the Northwest Passage. (Courtesy Fiona Mcglynn/) Not so very long ago, in a South Pacific anchorage, I watched a neighboring boat of three young cruisers going about their daily routine. Their 28-foot classic-plastic yacht looked as though it had been in a head-on collision with the watersports department at REI. Dive gear hung off every...

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