Saratta Chuengsatiansup for BIAs my boat cruises toward the private island city of Indian Creek Village — better known as the Billionaire Bunker — I'm hoping my trip doesn't end in an arrest.It's a hot morning on South Florida's Biscayne Bay, and I've convinced two local tour boat captains to pilot me around the perimeter of what is quite possibly the wealthiest and most heavily defended town in America.