Carnival Cruise Line has reopened reservations for four adults-only SEA Cruises aboard Carnival Firenze.
Anyone aged 21 and over can book the previously invitation-only sailings departing from Long Beach, California, in autumn 2026.
Carnival Brand Ambassador John Heald announced the news to his Facebook followers on 17th June 2026.
He revealed that the highly sought-after cruises – which were previously available primarily to casino players by invitation – are now accessible to the general public.
Heald himself plans to sail on the first departure, hosting events throughout the voyage.
The SEA cruises have historically been among Carnival’s most difficult sailings to book, typically reserved as exclusive perks for the cruise line’s casino players.
This limited availability made the adults-only experiences largely inaccessible to average Carnival guests.
The shift to public booking represents a significant change in strategy, opening up these premium experiences to all adult cruisers.
Guests must be at least 21 years old to sail, and bookings must be completed by 30th June 2026.
The adults-only format is designed to offer a distinctly different atmosphere from traditional Carnival cruises, which typically cater to families and guests of all ages.
Four Autumn 2026 Departures From Long Beach
All four SEA cruise departures will operate from Long Beach, California, aboard Carnival Firenze, one of the newest ships in the Carnival fleet.
The sailings span October and November 2026, ranging from seven to 14 days in length. The first voyage departs 12th October 2026 on a seven-day Mexican Riviera itinerary.
This sailing, which will feature Heald as a guest host, calls at Mazatlán, Cabo San Lucas, and Ensenada before returning to Long Beach.
A more extensive 14-day cruise follows on 19 October 2026, visiting six Mexican ports. The itinerary includes Cabo San Lucas, La Paz, Acapulco, Manzanillo, Puerto Vallarta, and Ensenada.
November Sailings Round Out The Programme
The third SEA cruise departs 2nd November 2026 on an 11-day voyage calling at Puerto Vallarta, Acapulco, Mazatlán, Cabo San Lucas, and Ensenada.
This mid-length sailing offers a balance between the shorter week-long cruises and the extended two-week voyage.
The final adults-only sailing leaves Long Beach on 13th November 2026 for a seven-day itinerary. Ports of call include La Paz, Cabo San Lucas, and Ensenada, Mexico.
All four sailings focus exclusively on Mexican Riviera destinations, offering autumn travellers a chance to explore Pacific Coast ports without children onboard.
Enhanced Programming And Casino-Focused Activities
Beyond the adults-only passenger requirement, the SEA cruises will feature special programming designed to differentiate them from standard Carnival sailings.
An enhanced dining room menu will be available, offering elevated culinary options not typically found on regular voyages.
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