2 Best Sights in Roatan and the Bay Islands, Honduras

For a pricey but one-of-a-kind experience, contact Stanley Submarines for the ultimate deep-sea wildlife-viewing excursion. The two-passenger submarine, named Idabel, is piloted by Captain Karl and expeditions take you as low as 610 meters (2,000 feet) below sea level. The journey promises the chance to spot sharks and mysterious creatures you've likely never imagined. It's reservations only so be sure to book in advance.

Glass-bottom boat and submarine tours are an excellent way to enjoy the West End's coral reefs from a nondiver perspective. Underwater Paradise drops passengers 7 feet below the water in an air-conditioned semi-submarine with a crystal-clear bottom view for 45 minutes of reef exploration.