Related Clues:

• Castaway's refuge
• Ely, e.g.
• Capri or Wight
• Avalon, for one
• "Survivor" locale, maybe
• It's surrounded by beaches
• Emerald, for one
• Chain part
• Continue to move after loss of power
• Gilligan's home
• Ocean liner?
• Maroon's locale, perhaps
• Spot on the map
• Archipelago component
• Small land mass