SpongeBob SquarePants is trading Bikini Bottom for the high seas. Royal Caribbean has confirmed that The SpongeBob Musical — a Tony Award-winning Broadway production — will be the headline theatre show aboard Hero of the Seas, the newest Icon-class ship launching from Miami in 2027. It's the first time the show has been staged at sea.
The musical turns the Nickelodeon cartoon into a full-scale stage production, with SpongeBob and friends racing to save their underwater home from a volcanic eruption. Expect the onboard theatre to be decked out in Bikini Bottom's bright, squid-pink-and-yellow palette — the kind of family-friendly spectacle Royal Caribbean has built its recent reputation on. Christi Coachman, the line's vice president of entertainment, framed it as a show designed to pull generations together, mixing familiar characters with big-stage production values.
So what kind of ship will host him? Hero of the Seas is the fourth Icon-class vessel, following Icon, Star and Legend of the Seas. She's fresh out of water testing at the Meyer Turku shipyard in Finland and will debut in Miami in 2027, sailing Caribbean itineraries from the start. Like her sisters, she's loaded: the largest waterpark at sea, 28 dining venues spread across eight themed neighbourhoods (including the leafy Central Park deck and family-oriented Surfside), and the Crown's Edge — a zipline that sends you around the ship's exterior suspended 154 feet above the water.
New additions set Hero apart from her siblings. There's the Orleans Parish Supper Club, a first-at-sea funnel raft slide, and a three-deck Ultimate Family Treehouse suite for families who want to go big. Pool count rises to nine — two more than the previous Icon ship — with a new Coconut Cove Pool and bar, plus an adults-only Hideaway area featuring a swim-up bar.
The wider picture is that Royal Caribbean is doubling down on this class. Legend of the Seas launched this summer with a Royal Railway immersive dining experience, a Hollywood Supper Club and a Willy Wonka-style theatre show that actually fills the auditorium with chocolate scents. A fifth Icon-class ship is already under construction in Finland for a 2028 launch, and orders for a sixth and seventh run through 2029 and 2030. Travellers booking these ships can expect the pattern to continue: enormous waterparks, dozens of restaurants and West End-calibre shows.
Why it matters: if you're travelling with kids (or are just a SpongeBob fan of a certain age), Hero of the Seas is shaping up as the family ship of 2027. Sailings will go on sale well before launch, and headline entertainment like this tends to anchor the marketing — so anyone eyeing a Caribbean cruise in the next couple of years should watch when bookings open. Fans of the Broadway show will also get a rare chance to see a full-scale production of it without a trip to New York.
