Cruises give you a chance to sail the world—and also a chance to explore a unique interest.
From the world's biggest heavy metal cruise to a cruise catered to cat lovers, there is a floating vacation that takes the most wacky and whimsical themes to the sea.
We’ve pulled together some of the most unusual themed cruises you can embark on, with destinations from the Caribbean to Europe to China.
Related: Great All-Inclusive Cruises
The Meow Meow Cruise is for cat lovers who often find themselves chatting about their cuddly companions.
Though cats aren't actually allowed on this cat cruise, the cruise brings cat fans together through events like its Meow Meow mixer, a Meow Meow trivia contest, and a Meow Meow scavenger hunt. The ship travels to Miami, Key West, and Cozumel in Mexico.
Rock the boat on a heavy metal cruise
Love heavy metal? You won't want to miss the 70,000 Tons of Metal Cruise, dubbed the world's biggest heavy metal cruise, with about 60 bands rocking the boat over five days. In true metal fashion, you can enjoy rocking out to your favorite artists without VIP entrances or lines, and enjoy drinks late into the night as the bars never close on this cruise.
There are meet and greet opportunities, as well as karaoke sessions, so vacationers can join in on the fun as they sail from Fort Lauderdale to Haiti.
Cruise with the undead
The “Walking Dead” comes to life on the Walker Stalker Cruise, where travelers can see celebrities like Norman Reedus, Jeffrey Dean Morgan, Chandler Riggs, and Tom Payne. There's also a “Night of the Living” costume contest, a “Thriller” dance class, and bingo served with Bloody Marys.
Additional activities on the cruise, which sails from Miami to the Bahamas, include a flip cup tournament, whiskey tastings, and pub crawls.
A very adults-only cruise
After the success of their first “clothing optional” cruise last year, Original Group is back with the Desire Cruise, which will depart from Barcelona to Rome in April of 2018, and stop in ports including Marseilles, Monte Carlo, and Portofino.
Steamy activities await on the ship, and even dining options range from “casually playful to erotically elegant.”
Hunt ghosts on the high seas
Halloween comes early on the Ghost Hunter's Cruise, where Barry Fitzgerald and Karl Pfeiffer of the show will take you through haunted ports around the globe.
Spooky stops with haunting legends the cruise has stopped at include Rose Hall in Jamaica, the Lizzy Bordon house in Newport, and the Red Onion Saloon in Skagway, Alaska. Continue the theme onboard with lectures on subjects that range from “legends and doorways to other worlds” to “the hard science of the paranormal.”
Quilt till you quit
For the last 25 years, Quilt Seminars at Sea has combined a love of travel with a passion for quilting.
The cruises, which range from seven to 14 days, cover ports in destinations ranging from the U.S. and Asia to the Caribbean. Sewing machines are offered onboard for your use as you learn the ropes from world-renowned quilting instructors, while trip itineraries will often include activities like meeting with quilt guides in Turkey or perusing through quilt shops in Spain.
Knit on the open water
Another cruise for craft lovers, Knitting Cruises offer passengers like-minded knitting travelers as well as knitting instructors on board. Stops range from yarn shops and knitting schools in Japan, to cashmere mills in China and textile museums in Amsterdam.
Cruise to the past
Take a step back in time as you head into the 1950s and '60s with the Malt Shop Memories Cruise, sailing from Fort Lauderdale, Florida, to Saint Maarten and Antigua and Barbuda.
Relax to the sounds of entertainers from The Beach Boys to Brenda Lee, then enjoy a Twist contest and a sock hop. Onboard dance instructors are available to teach you any classic moves you haven't yet mastered.
Dubbed the “world's only motorcycle rally on a cruise ship,” the High Seas Rally takes motorcycle lovers to destinations like the Grand Cayman, while also offering a trade show with bike vendors, a biker attire dress code, and parties on the ship and the shore.
Solve a mystery on board
Murder Mystery Cruises, hosted by mystery writer Jack Pachuta, take travelers through an ongoing mystery event incorporating clues fro the various ports, while also offering writing lessons should travelers also want to write a murder mystery themselves.
Go for the goth
Gothic Cruise, the original gothic cruise founded in 1989, continues to take fans on night escapes to destinations that include the Mexican Riviera and Alaska. Onboard, passengers are decked out in gothic gear. A Victorian ball is part of the activities included on the itinerary, in addition to performances and themed parties.