India, Aug. 26 -- Luxury cruises are no longer just about fine dining, casinos, and infinity pools; they're now about freedom of choice, quite literally. Bare Necessities, a US-based travel company, has been pioneering clothing-optional cruises since 1990, and its flagship "Big Nude Boat" has become the world's largest nude cruise. More than just a quirky holiday trend, these voyages are designed to promote body positivity, respect, and community, while giving travellers a once-in-a-lifetime adventure. (Also read: Suniel Shetty, KL Rahul, Athiya and Ahan Shetty give major travel goals with their dreamy family getaway to London. Pics )

Guests aboard the Norwegian Pearl, a 2,300-passenger ship, embark on an 11-day itinerary through the Car...