Related Clues:

• Castaway's refuge
• It contains two cups
• Ely, e.g.
• Capri or Wight
• Avalon, for one
• "Survivor" locale, maybe
• Shape-shifter?
• It's surrounded by beaches
• Emerald, for one
• Bikini piece
• Chain part
• One with a supporting role?
• Shape shifter?
• Gilligan's home
• Maroon's locale, perhaps