Carnival Cruise Line will serve as the official cruise line sponsor of the Port of San Diego’s Big Bay Boom, the largest Fourth of July fireworks show on the West Coast, the company said in a press release.

The guests sailing over the holiday on Carnival Radiance, Carnival Firenze and Carnival Luminosa will get a front row seat as the ships will be anchored in the Pacific Ocean near San Diego Bay to enjoy the show to celebrate America’s 250th birthday.

Carnival will have a major presence at the event and lead the countdown to kick-off the show, with its brand featured throughout the programming and celebrations. Carnival will also support community promotions leading up to the holiday and collaborate with the Port of San Diego on special moments honoring active-duty service members.

“We’re honored to be part of such a historic milestone and iconic event in San Diego,” said Christine Duffy, president of Carnival Cruise Line. “Being the exclusive cruise line sponsor of the Big Bay Boom gives us a meaningful way to celebrate our connection to this community, to our military families and to the patriotic spirit that defines Fourth of July.”

The sponsorship complements Carnival’s recently announced sailings that will take part in synchronized patriotic celebrations at sea for America’s 250th birthday. On July 4, 2026, seven ships sailing from East Coast homeports will meet up near Celebration Key for a unique celebration at sea, in addition to the three ships that will anchor on the West Coast for the Big Bay Boom.

During the meetups, each ship will host patriotic birthday-themed deck parties, featuring special entertainment and food and drink offerings. With three Carnival ships homeported in Long Beach offering the largest cruise operation on the West Coast, millions of Southern California residents are a short drive to Carnival’s diverse cruise vacation offerings.

“We are thrilled to collaborate with Carnival for next year’s Big Bay Boom program and festivities,” said Chair Danielle Moore, Port of San Diego Board of Port Commissioners. “Along with Carnival, their cruise ship guests, the local community and thousands of visitors, we look forward to enjoying another spectacular fireworks show and memorable Independence Day celebration across San Diego Bay.”