Related Clues:

• Coral islets, eg of the Bahamas
• A charge for crossing southern islands
• Islands for example circumventing tax
• Charlie gets to say rubbish to the banks
• Chain components, perhaps
• Ring reefs
• Micronesia components
• Coral reefs
• Bikini and the like
• Lagoons' surrounders
• Sandy islands
• Lagoon rings
• Islands surrounding lagoons
• Rings of coral islands
• Much of Micronesia's makeup