Possible Clues:

• Source of disappearance: large, marine but mysterious?
• Atlantic site of strange disappearances
• North Atlantic region
• Short's m?nage ? trois perhaps has a reputation for performing a disappearing act with the sailors
• Area where aeroplanes allegedly have mysteriously disappeared
• Product of confused dreaming, but real -- a once-in-a-lifetime destination?
• Kind of shorts covering figure's expanse in Caribbean
• Atlantic mystery region
• Has a reputation for missing the boat and the plane perhaps in shorts with idiophone
• Area of real danger, but I'm dubious