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Ship comparison

Crystal Serenity vs Seven Seas Mariner

The verdict

Which should you choose?

Crystal Serenity is a small Crystal ship carrying 740 passengers, in service since 2003. Seven Seas Mariner is a small Regent Seven Seas Cruises ship carrying 700 passengers, in service since 2000.

Choose Crystal Serenity if you want a better-rated spa and gym, a lower starting fare or better-rated dining: it outscores Seven Seas Mariner for spa & fitness (10.0 vs 8.0) and dining (10.0 vs 8.1) in Cruiseable’s Bliss scores and its cruises start from $2,100 (vs $5,499).

Choose Seven Seas Mariner if you want more adventure and nature or a more family-friendly ship: it outscores Crystal Serenity for adventure & nature (7.0 vs 4.0) and family friendly (5.0 vs 4.0) in Cruiseable’s Bliss scores.

Side by side

Specifications

marks the better figure where more, or less, is plainly better.

Crystal SerenitySeven Seas Mariner
Cruise line Crystal Regent Seven Seas Cruises
Ship size Small Small
Maiden voyagenewer highlighted 2003 (better) 2000
Last refurbishedmore recent highlighted 2022 (better) 2018
Gross tonnage 68,870 48,075
Passengers 740 700
Crew 635 445
Passengers per crew memberfewer is better 1.2 (better) 1.6
Space per passengergross tons per passenger; more is roomier 93.1 (better) 68.7
Decks 13 8
Length 820 ft 709 ft
Beam 132 ft 93 ft
Speed 23 mph
Cruiseable ratingout of 10 10 / 10 10 / 10
Cruises on sale 109 100
Upcoming sailings 109 100
Cruise lengths 3–139 nights 8–174 nights
Fares fromlower highlighted $2,100 (better) $5,499

Bliss scores

How they rate, out of 10

Cruiseable rates ships out of 10 on ten parts of a cruise holiday. Crystal Serenity leads on 4 of the ten, Seven Seas Mariner on 3, with 3 level.

  • Active Crystal Serenity: 7.0 Seven Seas Mariner: 7.0
  • Adventure & nature Crystal Serenity: 4.0 Seven Seas Mariner: 7.0
  • Cultural Crystal Serenity: 9.0 Seven Seas Mariner: 8.0
  • Dining Crystal Serenity: 10.0 Seven Seas Mariner: 8.1
  • Entertainment Crystal Serenity: 8.0 Seven Seas Mariner: 8.2
  • Family friendly Crystal Serenity: 4.0 Seven Seas Mariner: 5.0
  • Party Crystal Serenity: 6.0 Seven Seas Mariner: 5.0
  • Romantic Crystal Serenity: 10.0 Seven Seas Mariner: 10.0
  • Spa & fitness Crystal Serenity: 10.0 Seven Seas Mariner: 8.0
  • Staterooms Crystal Serenity: 10.0 Seven Seas Mariner: 10.0

Crystal

Crystal Serenity

Think of Crystal Serenity as a floating Four Seasons Resort. Discerning travelers longing for comfort, enrichment, high-touch service and contemporary surroundings will find all of that and more on this gorgeous high-end ship, the largest ultra-luxury vessel at sea.

Highlights

  • $52 million of "extreme makeover" improvements
  • Chic and contemporary public areas
  • Lido Cafe has new "California Riviera" vibe
  • 70 PURE hypoallergenic deluxe veranda staterooms

Sailing now

109 cruises on sale, from $2,100.

Regent Seven Seas Cruises

Seven Seas Mariner

The casually chic, 700-passenger Mariner feels like a floating country club with a relaxed, upscale style that allows passengers to be themselves. By that I mean you can dress up or down (but no jeans at night), dine where and when you want and take advantage of all the free shore excursions or just plop on a chaise and read a book.

Highlights

  • Musical reviews and Cirque-style productions in Constellation Theater
  • Game shows and resident musicians in Horizon Lounge
  • Relaxing spa treatments at Canyon Ranch SpaClub
  • Stellar itineraries to exotic destinations the world over

Sailing now

100 cruises on sale, from $5,499.

Questions

Crystal Serenity or Seven Seas Mariner?

Which is bigger, Crystal Serenity or Seven Seas Mariner?

Crystal Serenity is bigger at 68,870 gross tons, against 48,075 gross tons for Seven Seas Mariner. Crystal Serenity carries 740 passengers and Seven Seas Mariner carries 700.

Which ship is newer, Crystal Serenity or Seven Seas Mariner?

Crystal Serenity is newer, with a maiden voyage in 2003 against 2000 for Seven Seas Mariner.

Which has more space per passenger?

Crystal Serenity, with 93.1 gross tons per passenger against 68.7 on Seven Seas Mariner. The higher the figure, the more ship there is for each guest.

Which has more crew per passenger?

Crystal Serenity, with one crew member for every 1.2 passengers against one for every 1.6 on Seven Seas Mariner.

Which is better for families?

Seven Seas Mariner scores higher for family friendliness in Cruiseable’s Bliss scores: 5.0 out of 10, against 4.0 for Crystal Serenity.

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