Carnival Cruise Line has extended the length of time its ships spend in Cozumel, Mexico, on more than 750 voyages, providing guests with even more opportunities to experience and explore one of the Caribbean’s most diverse vacation destinations.

On “Cozumel Plus” itineraries, guests now have access to a variety of new excursions, many taking place on Mexico’s mainland – with unforgettable tours like swimming with whale sharks, visiting centuries-old ruins and swimming in hidden caverns, just to name a few, complementing nearly 50 existing tours already available.

Carnival is kicking off its new Cozumel Plus itineraries with a special promotion offering a $25 per person shipboard credit that can be used toward shore excursions.  The shipboard credit offer is available through April 22, 2016, when booking in combination with Carnival’s Early Saver rates.

Designated by a special notation on Carnival’s web site, Cozumel Plus itineraries are operated by 17 different Carnival ships offering more than 750 four- to eight-day cruises from six U.S. homeports along the East Coast and Gulf of Mexico. Carnival Cruise Line offers the greatest variety of cruises to Cozumel, providing guests with unparalleled choice and convenience in their shore excursion options.

The additional time in port has enabled Carnival’s shore excursion experts to partner with local tour operators to create one-of-a-kind excursion offerings that allow guests to fully immerse themselves in Mexican culture and participate in truly unique landside experiences.

Cozumel Plus tours are up to eight hours in duration and include everything from extended, day-long tours visiting ancient Mayan ruins, including Chichen Itza – one of the Seven Wonders of the World dating back to 750 A.D. – to snorkeling the exquisite turquoise waters of Xel-Ha, a magnificent group of lagoons connected by a series of bridges.

On other excursions, guests can explore Mexico’s famed “secret river,” subterranean caverns connected by underground waterways with stunning natural rock formations that are millions of years old or participate in a seasonal excursion of swimming in open waters with whale sharks – gentle sea creatures measuring up to 40 feet in length and weighing up to 47,000 pounds.

Of course, the additional time in port provides guests with more time to check out Cozumel’s legendary white-sand beaches, excellent fishing, snorkeling and water sports, and unique shopping and dining opportunities.

Cruises visiting Cozumel dock at Puerta Maya, Carnival’s modern three-berth facility in Cozumel which, in addition to offering easy access to the various tours via an on-site transportation center, includes a variety of retail shops, boutiques and restaurants, enhancing guests’ on-shore experience.

“With magnificent beaches and interesting landmarks and historical sites, Cozumel is the Caribbean’s premier cruising region and our ‘Cozumel Plus’ itineraries provide our guests with a seemingly endless variety of new ways to explore this fascinating destination,” said Christine Duffy, president of Carnival Cruise Line. “These new itineraries provide our guests with the opportunity to create wonderful vacation memories and our travel agent partners an exciting cruise option to market to their clients.”