A massive white Royal Caribbean cruise ship named "Symphony of the Seas" navigating choppy water. The multi-deck vessel features a wide bow, rows of balconies, yellow lifeboats, and exhaust plumes coming from its smokestacks, with small tugboats nearby under an overcast sky.

Royal Caribbean International

Symphony of the Seas

The Oasis ship that arrived with everything, and so has never needed rebuilding

Sailings Available

71

Ports Visited

18

Next Departure

Nov 8, 2026

Trip Length

4–10 nights

Symphony of the Seas is the fourth Oasis-class ship, handed over by Chantiers de l’Atlantique at Saint-Nazaire on March 23, 2018, and she is the one the others were made to look like. Oasis and Allure were built in 2009 and 2010 and have both since been gutted and refitted at considerable expense; Harmony went into a Cádiz drydock in 2026 for the same treatment. Symphony has never had one, because most of what those refits installed was designed for this hull in the first place.

She held the title of largest passenger ship in the world from her delivery until Wonder of the Seas took it in early 2022, just under four years, the shortest run any Oasis ship has had with it.

What debuted here

Playmakers Sports Bar & Arcade. The first one in the fleet opened on Symphony, on the Boardwalk, with thirty screens and a wall of arcade cabinets. It has since gone into most of the fleet, including into Oasis and Navigator during their amplifications, which is a good measure of how well it worked.

Hooked Seafood, a New England-style room with a raw bar, and Sugar Beach, the candy and ice cream shop on the Boardwalk, both started here too.

The Ultimate Family Suite. Two decks, a slide connecting them, a cinema and gaming room, an air hockey table and a jacuzzi on the balcony. It was built as a stunt and it sold, and Royal Caribbean has been retrofitting versions of it into sister ships since.

Battle for Planet Z, laser tag played in the dark under glow paint, and Escape the Rubicon, an escape room dressed as a submarine, filled the gap between the AquaTheater show and dinner. Both are now standard.

The rest of the ship

The Oasis structure is unchanged: a split superstructure with Central Park open to the sky amidships and the Boardwalk aft, ending at the AquaTheater and its diving platform. Seven neighborhoods, 5,518 guests at double occupancy across sixteen passenger decks, and the layout is what keeps that number from feeling like a stadium. The Ultimate Abyss drops ten decks off the stern. The Perfect Storm slides are on the pool deck, the zip line runs across the Boardwalk, and there are two rock walls and a pair of FlowRiders at the back.

The engineering footnote worth having: she generates 85 MW where the earlier Oasis ships needed 100 MW for the same job, the difference coming from LED lighting, waste heat recovery and an air-bubble system under the hull. She is the most efficient of the pre-Icon big ships by a clear margin.

She has had two drydocks, both at Cádiz, a short one in 2021 and a longer one at Navantia in the spring of 2023. Neither was an amplification. The 2023 work was maintenance, hull painting and a hotel refresh, and the single visible change was Jazz on 4 becoming a non-smoking casino room.

Where she actually sails

Galveston, and then Florida. She opened her first Texas season in May 2026 and the bulk of what is on sale here is a round-trip week out of Galveston: six-, seven- and eight-night Western Caribbean runs, calling at Cozumel, Costa Maya and Roatán in almost every combination. Those three ports account for more than a hundred and fifty calls between them and they are what a Galveston sailing on this ship means.

In the summer of 2027 she moves. A single ten-night sailing runs Galveston to Fort Lauderdale, and from there she works Port Everglades on four- to nine-night Caribbean and Bahamas itineraries, with Perfect Day at CocoCay and Nassau becoming the two most frequent calls and San Juan, Philipsburg, Willemstad and Oranjestad appearing on the longer ones.

If you are comparing dates, read the departure port before the ship. The Galveston program and the Fort Lauderdale program are different vacations on the same hull, and the Texas one is the more port-heavy of the two.

Who she suits

Families, large groups, and anyone who wants the Oasis class without paying Icon money. Everything the class is known for is aboard and none of it is a retrofit, which shows in small ways; the venues sit where they were meant to sit rather than where a naval architect could find room for them in 2019.

She is a particularly good answer for the Gulf Coast. Galveston is a drive for a large part of Texas and the interior South, and a 228,000-ton ship on a seven-night Western Caribbean week from a port you can reach by car is a rare combination.

She is the wrong ship if you want quiet, if you dislike planning, or if you are buying the itinerary rather than the vessel. Cozumel, Costa Maya and Roatán are three of the most heavily trafficked ports in the Caribbean and you will share them with several thousand people off your own ship. She is also the wrong ship for anyone chasing the newest hardware: Star and Icon have the waterpark, the AquaDome and the eight-neighborhood layout, and Symphony is eight years old with no amplification on her schedule. What she has instead is the same idea, better value, and a Texas homeport.

Photo: Darthvadrouw · CC BY-SA 4.0 (share-alike) · Re-encoded to WebP.