Ship Comparison
Oasis of the Seas vs Mariner of the Seas
For an expansive, bustling resort at sea with endless family thrills, choose Oasis; for a high-energy, activity-packed Caribbean escape with diverse European options, Mariner delivers.
The verdict
Oasis of the Seas defines the mega-ship experience, a vibrant floating city designed for continuous activity and diverse entertainment across its distinct neighborhoods. Mariner of the Seas, while smaller, offers an equally action-packed and family-friendly atmosphere, especially appealing for shorter, value-driven Caribbean and European cruises. Both ships deliver on Royal Caribbean's promise of adventure, but cater to different scales of vacation.
Choose Oasis of the Seas if…
The Thrill-Seeking Family, The Entertainment Enthusiast, The Social Explorer, The Strategic Serenity Seeker, The Culinary Adventurer.
Best for
- Families with active children and teens
- Guests seeking extensive entertainment and Broadway shows
- Social travelers who enjoy bustling public spaces
- Foodies willing to explore numerous specialty dining options
Avoid if
- Prefer a quiet, intimate cruise experience
- Dislike large crowds and long lines
- Are on a strict budget for dining (given specialty recommendations)
- Sensitive to noise in cabins near public areas
Choose Mariner of the Seas if…
The Thrill-Seeking Family, The Social Weekend Warrior, The Value-Conscious Foodie, The Unwinding Sunseeker.
Best for
- Families looking for an active, fun-filled Caribbean getaway
- Social travelers and weekend warriors seeking lively nightlife
- Value-conscious foodies who appreciate good complimentary and specialty dining
- Adults seeking a lively but manageable adults-only pool area
Avoid if
- Prefer a luxurious, modern cabin aesthetic
- Are sensitive to smoke (in Casino Royale)
- Expect consistent high-quality buffet dining for all meals
- Seek a completely tranquil and crowd-free experience
Overall Vibe
Oasis of the Seas
A true pioneer, Oasis of the Seas launched in 2009 and underwent a significant refurbishment in 2019, positioning itself as a modern marvel at sea. With a staggering tonnage of 226,838 and spanning 15 decks, this mega-ship is designed to be a destination in itself. Its overall vibe is one of boundless energy and innovation, a vibrant floating city with distinct "neighborhoods" like Central Park and the Boardwalk. It promises an expansive, bustling experience, constantly offering new thrills and diverse environments to explore, making it ideal for those who thrive on variety and a grand scale of adventure.
Mariner of the Seas
Mariner of the Seas, refurbished in 2012, presents a more focused, yet still action-packed experience. While not a mega-ship in the same vein as Oasis, its 14 decks offer a lively and energetic atmosphere, especially appealing for shorter getaways. The vibe here is about maximizing fun and activity in a more intimate setting compared to its larger counterpart. It's a ship that packs a punch with its array of modern thrills and signature Royal Caribbean experiences, creating a spirited and engaging environment for guests seeking an active, yet manageable, cruise vacation.
Atmosphere & Crowd
Oasis of the Seas
Carrying a substantial 6,780 passengers and supported by a dedicated crew of 2,394, Oasis of the Seas buzzes with a high-energy, bustling atmosphere. It's a melting pot of active cruisers and families, with a constant hum of activity. The ship’s innovative "neighborhoods" design helps distribute the crowds, but popular areas like the AquaTheater and Royal Promenade can still feel quite lively. Expect a diverse crowd, all seeking to immerse themselves in the ship's numerous offerings, from thrilling slides to Broadway-caliber shows. It's a social environment where making new connections is part of the journey.
Mariner of the Seas
Mariner of the Seas hosts 3,344 passengers and a crew of 1,200, fostering a distinctly lively and action-packed atmosphere. It's particularly popular for short Caribbean escapes, attracting sunseekers and families looking for a quick, activity-filled vacation. While still energetic, the passenger-to-crew ratio suggests a slightly more attentive service compared to larger ships, and the overall scale feels less overwhelming. The crowd tends to be family-oriented and social, enjoying the vibrant pool deck and numerous entertainment options without the sheer volume of a mega-ship.
Dining
Oasis of the Seas
Oasis of the Seas offers an extensive culinary landscape, blending complimentary and specialty options. The Main Dining Room, spanning three decks, provides a rotating international menu, though it can get quite noisy at peak times. The Windjammer Marketplace, while comprehensive for breakfast and lunch, can feel hectic. However, the ship truly shines with its 11 specialty venues. Highlights include the upscale 150 Central Park for locally sourced ingredients, Portside BBQ for authentic slow-cooked meats, and Izumi for fresh sushi and hibachi. Suite guests also enjoy exclusive access to Coastal Kitchen, offering Mediterranean-inspired fare with stunning views.
Mariner of the Seas
Mariner of the Seas provides a solid dining experience with both included and specialty choices. The Main Dining Room offers elegant service and a changing international menu, while the Windjammer Cafe serves a bustling buffet, particularly good for breakfast and lunch. For those seeking unique flavors, specialty dining is a standout. Jamie's Italian by Jamie Oliver offers Roman-inspired dishes and fresh pasta, Izumi provides an energetic hibachi and sushi experience, and Chop's Grille is a popular choice for quality steaks. The Bamboo Room adds a unique tiki-themed lounge with tropical cocktails and light bites.
Entertainment & Nightlife
Oasis of the Seas
Entertainment on Oasis of the Seas is a spectacle, featuring Broadway's "Cats" in the Royal Theatre and the stunning AquaTheater shows like "Aqua80," with Olympic-caliber divers. Thrill-seekers will love the Ultimate Abyss dry slide, The Perfect Storm waterslides, FlowRider surf simulators, and a zip line. Nightlife is equally diverse, from the robotic bartenders at Bionic Bar and lively Latin rhythms at Boleros to piano singalongs at Schooner Bar and dancing at Music Hall or Blaze Nightclub. Unique spaces like Central Park and the Boardwalk also offer more relaxed evening strolls and people-watching.
Mariner of the Seas
Mariner of the Seas offers a concentrated burst of high-energy entertainment. Signature thrills include the FlowRider surf simulator, The Perfect Storm waterslides (Typhoon and Cyclone), the Sky Pad virtual reality bungee trampoline, and a rock-climbing wall. Evening entertainment is vibrant with ice skating shows like "Ice Under The Big Top," live music and salsa dancing at Boleros, and lively piano singalongs at Schooner Bar. Playmaker's Sports Bar & Arcade provides a casual spot for games and sports, while the Royal Theatre hosts a variety of original productions and game shows.
Cabins & Suites
Oasis of the Seas
Oasis of the Seas features a grand total of 2,801 cabins, including 18 large suites, offering a wide range of choices from interior staterooms to expansive loft suites. Guests can opt for unique views overlooking Central Park or the Boardwalk, or traditional ocean view balconies. Suite categories like the Royal Loft Suite, AquaTheater Suites, and Owner's Panoramic Suites provide generous space and exclusive perks such as Royal Genie Service for Star Class guests or Coastal Kitchen access for Sky Class and above. While standard cabins are well-appointed, it's wise for light sleepers to consider decks 10, 11, or 12 to minimize potential noise from public areas.
Mariner of the Seas
Mariner of the Seas offers 1,674 cabins, providing a comfortable, though somewhat dated, retreat. The decor, with its '90s-era prints and light oak, is clean and functional. Cabin options range from interior and ocean view staterooms to various suites. Junior Suites offer a sitting area and tub, while Grand Suites come in one or two-bedroom configurations with added living space and balconies. The Royal Suite provides ultimate luxury with a separate bedroom and living area, plus a whirlpool tub. Suite guests (Grand Suite level and above) receive exclusive access to the Concierge Lounge. Guests should note that Promenade View Interior rooms can be noisy.
Service & Onboard Style
Oasis of the Seas
Onboard Oasis of the Seas, service is generally attentive, though the sheer scale of the ship means a more Personalized experience in smaller venues or for suite guests. Star Class suite guests benefit from the dedicated Royal Genie Service, offering a highly tailored experience, while Sky Class guests enjoy Coastal Kitchen access and concierge services. The ship's style is modern and bustling, with distinct "neighborhoods" creating varied ambiences, from the tranquil Central Park to the lively Royal Promenade. The overall feel is one of grand scale and efficiency, designed to cater to a large, active population.
Mariner of the Seas
Mariner of the Seas maintains Royal Caribbean’s reputation for friendly and efficient service, particularly noted in its specialty dining venues. Suite guests (Grand Suite level and above) enjoy elevated service with access to the exclusive Concierge Lounge, providing a quieter space and dedicated assistance. The ship's style is vibrant and action-oriented, reflecting its focus on shorter, energetic getaways. While some cabin decor might feel a bit dated, the public spaces have been updated to support its "amped up" activities, offering a lively and engaging environment that balances fun with a good standard of care.
Best Itineraries
Oasis of the Seas
Oasis of the Seas primarily focuses on Caribbean sailings, offering a strong selection of 3, 4, and 7-night Bahamas & Perfect Day cruises, often including a stop at Royal Caribbean's private island, CocoCay. For those seeking longer adventures, there are also 6 and 7-night Western Caribbean cruises, 7 and 9-night Eastern Caribbean itineraries, and 8-night Southern Caribbean options. Occasional 9-night Transatlantic repositioning cruises are also available, providing a broader journey for keen explorers. The itineraries are designed to maximize time in popular, sun-drenched destinations, perfect for active families and couples.
Mariner of the Seas
Mariner of the Seas offers a more diverse range of itineraries, appealing to guests looking for both shorter and longer escapes. It's particularly known for its 4, 5, 6, 7, 9, and 10-night Western Caribbean cruises, many of which include a stop at Perfect Day at CocoCay. Beyond the Caribbean, Mariner of the Seas also ventures into Europe, with 7, 8, and 9-night cruises exploring Spain & Portugal, 7-night Norwegian Fjords cruises, and shorter 5-night Hamburg & Bruges getaways. Additionally, it offers extended 15 and 17-night Transatlantic crossings, catering to those who enjoy sea days and exploring multiple regions.
What reviewers say
Oasis of the Seas
4.5/5One of the largest ships in the world, Oasis of the Seas makes an impression even before you board; the mega-ship looms above its counterparts. It has been enthusiastically embraced as one of Royal Caribbean's most beloved vessels, offering a dizzying amount of activities across its manageable neighborhoods.
Mariner of the Seas
4.5/5Mariner of the Seas is an affordable Caribbean cruise option with just enough action to make your short Caribbean vacation one to remember. Activity-filled, weekend-friendly itineraries and great food make an ideal family-friendly sailing.
Itineraries to compare
Pick an itinerary on either ship to see all available departure dates.
Oasis of the Seas
Mariner of the Seas
Read our guides
In-depth guides on the ships and cruise lines in this comparison.

Ship Guide
Oasis of the Seas: A Mega-Ship of Endless Adventure
Discover a world of thrilling activities and diverse dining across unique neighborhoods.

Ship Guide
Mariner of the Seas: Affordable Caribbean Family Fun
Discover activity-filled itineraries and great dining perfect for memorable family vacations.
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