Key Highlights
- The updated 2025 lineup redefines luxury with 20 decks, 7 pools, and 6 water slides.
- Royal Caribbean's Icon of the Seas will eclipse all competitors, carrying 7,600 passengers.
- Eco‑friendly propulsion via multi‑fuel Wartsila engines sets a new industry standard.
- Top five vessels are all operated by a single cruise line, dominating the market.
Detailed Insights
Icon of the Seas (Royal Caribbean, debut January 2024) measures 364.75 m in length and 48.47 m in width, achieving a gross tonnage of 250,800 GT. With 20 decks, it houses 7 swimming pools, six water‑slides, and a full waterpark, while accommodating 7,600 guests and a crew of 2,350.
Wonder of the Seas (Royal Caribbean, debut January 2022) tops the Oasis class at 362.1 m long and 236,857 GT. The ship introduced the first suite neighborhood, an upgraded pool deck, and the Aqua Theatre, raising the bar for onboard entertainment.
Harmony of the Seas (Royal Caribbean, debut May 2016) carries 6,780 passengers across 362 m of steel. With 2,747 staterooms and real‑time virtual balconies, Harmony mixes technology with classic luxury, offering 5,479 guests at double occupancy.
All five largest vessels belong to Royal Caribbean, revealing the company’s dominance in the high‑capacity segment and its focus on sustainability, as seen in Icon’s multi‑fuel engines.
Key Concepts
- Gross tonnage (GT) – a ship’s overall internal volume, used to assess size and regulatory classification.
- Multi‑fuel engine – power plants that can run on LNG, distillate, or other fuels, reducing environmental impact.
- Virtual balcony – a digital extension of a ship’s interior, giving guests panoramic views via screens.
- Aqua Theatre – an indoor water‑based performance space that can be transformed into a pool during operation.
- Oasis class – the series of flagship Royal Caribbean ships that lead in size and amenities.