Thunderball Grotto
2/10It's best known for the spot where Thunderball - the 1965 James Bond movie - was filmed. But even if you didn't catch the flick, this is still a must-see if you like to snorkel. We took a chartered yacht by The Moorings to the site - but you can arrange an excursion to Thunderball Grotto from just about any cruise ship visiting the Bahamas. The grotto, which is just off Staniel Cay, is accessible only if you swim into it. Once inside, it's small yet beautiful, with turquoise water and tons of fish. The truly brave (or those willing to risk their lives) may attempt to jump from the top of the grotto through a small, jagged hole, into the water below. Try if you dare.