Royal Caribbean's Harmony of the Seas left its May 2026 drydock at Navantia Shipyard in Cadiz with 57 additional revenue-generating accommodations, after Almaco Group completed a conversion project that turned public spaces into sleeping rooms on one of the world's largest cruise ships.

The scope centered on a new forward accommodation block holding seven panoramic suites and 21 staterooms, plus the conversion of part of the two-deck Wonderland specialty restaurant into 29 additional staterooms. Almaco also installed a noise-reduction ceiling in the Music Hall beneath the new cabin area — a technical detail that matters when bedrooms sit above a late-night entertainment venue.

The math is straightforward for anyone selling Oasis-class inventory. A ship that carried roughly 5,479 guests at double occupancy now has more berths to sell on every sailing, with the seven panoramic suites adding high-yield inventory at the top of the fare ladder. Converting restaurants and lounges into cabins is a capacity play that requires no newbuild capital and no change to deployment plans — Royal Caribbean extracts more revenue from an asset that already earns its keep.

The execution window was tight. Harmony of the Seas arrived in Cadiz in April for a 44-day drydock. Almaco ran approximately seven months of preparation before steel was cut, covering design, engineering, procurement, planning and coordination with the owner and other contractors. During execution the contractor deployed up to 240 personnel on site and managed delivery of roughly 86 TEUs of material to Cadiz.

That supply-chain figure is worth pausing on. Moving 86 TEUs of prefabricated cabin modules, furniture and finishing materials into a Spanish shipyard on a schedule measured in weeks illustrates why cruise refit work concentrates among a small group of contractors with proven logistics capacity. Slippage is expensive: every day a ship sits in drydock is a day it does not sail, and Royal Caribbean's published itineraries depend on the vessel returning to service on time.

Almaco, which specializes in newbuild and retrofit accommodation work across the cruise, offshore and defense sectors, delivered the project in collaboration with the shipyard, the owner and other project partners, according to a company press release. The company did not disclose the contract value.

For Royal Caribbean, the refit fits a wider pattern of squeezing more berths from existing tonnage between newbuild deliveries. Harmony of the Seas entered service in 2016 as the third Oasis-class ship, and mid-life conversions of this kind typically precede or accompany repositioning decisions, since added suite inventory changes the yield calculus for premium deployments.

The drydock also delivered standard lifecycle work — classification surveys and technical maintenance are routine in a 44-day window — though the press release did not itemize scopes beyond the accommodation project.

Almaco said it looks forward to continued collaboration with Royal Caribbean, signaling that the Finnish-headquartered contractor expects follow-on work as the operator continues to modernize its existing fleet.