Would you vacation in a lagoon off of a private island in Fiji? If your answer is yes, consider a stay at the Poseidon Undersea Resort when it opens. The project was developed by L. Bruce Jones, president of U.S. Submarines, Inc., and it includes 25 guest suites, a spa, a 100-seat restaurant, a bar/lounge, a fitness center, a conference room/wedding chapel/theater, and a dive shop. If the "private island" part scares or intimidates you, then you'll like the fact that Poseidon has 51 additional luxury units (including 24 beachside bungalows). Put simply, once they're able to complete this project, it'll be a huge feat of architecture and luxury.