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National Geographic Explorer vs Sea Cloud Spirit

Side-by-side cruise ship comparison · Updated January 2026

Sea Cloud Spirit offers more personal space with a space ratio of 48.5 GT per passenger versus 43.7. Built in 2021, Sea Cloud Spirit is 39 years newer, an advantage for travellers seeking modern amenities and design. Sea Cloud Spirit edges ahead in service with a passenger-to-crew ratio of 1.6:1, meaning more crew per guest.

Score: 25

Quick Compare

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Category
National Geographic Explorer
Sea Cloud Spirit
Size
6,471 GT
6,600 GT
Passengers
148
136
Year Built
1982
2021
Crew Ratio
1:1.7
1:1.6
Space Ratio
43.7
48.5
Decks
Length
108m
138m

Comparison Verdict

Sea Cloud Spirit offers more personal space with a space ratio of 48.5 GT per passenger versus 43.7. Built in 2021, Sea Cloud Spirit is 39 years newer, an advantage for travellers seeking modern amenities and design. Sea Cloud Spirit edges ahead in service with a passenger-to-crew ratio of 1.6:1, meaning more crew per guest.

CategoryWinner
SizeSea Cloud Spirit
CapacityNational Geographic Explorer
ModernitySea Cloud Spirit
ServiceSea Cloud Spirit
SpaciousnessSea Cloud Spirit
DecksTie
LengthSea Cloud Spirit
Fleet PowerNational Geographic Explorer

Bottom line: Sea Cloud Spirit leads 5–2 across our categories, strongest in Size. Choose Sea Cloud Spirit for overall superiority; pick National Geographic Explorer if Capacity matter more to you.

Which Ship Is Right for You?

Choose National Geographic Explorer if...

  • More onboard variety (148 guests)
Book Geographic Explorer

Choose Sea Cloud Spirit if...

  • You want the newer ship (built 2021, 39yr newer)
  • Size matters to you (6,600 GT)
  • Better service ratio (1.6:1 crew ratio)
  • More space per guest (48.5 GT/pax)
Book Cloud Spirit

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National Geographic Explorer

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Sea Cloud Spirit

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Frequently Asked Questions

How is the comparison score calculated?

We compute scores across 8 categories using real spec data: gross tonnage, passenger capacity, crew capacity, year built, length, deck count, space ratio, and fleet power. Each category awards one point to the winning ship.

What is the space ratio and why does it matter?

Space ratio is gross tonnage divided by passenger capacity. A higher number means more space per guest. Luxury lines typically score above 40; mass-market ships often fall in the 30-40 range.

What does the passenger-to-crew ratio mean?

Passengers per crew member. Lower is better, more staff per guest means better service. Luxury lines aim below 2:1; large mainstream ships may be 3-4:1.

Are the prices shown accurate?

Prices are sourced from Cruisebound and reflect real-time availability. They may change based on cabin type, date, and demand. Click through to see the latest fares.

Can I compare more than two ships?

Yes, up to four ships. Use the search tool on the compare hub page to add additional ships.

How current is the ship data?

Specifications come from our database of 380+ vessels, revalidated every 5 minutes via ISR. The "Updated" timestamp shows when records were last modified.