Side-by-side cruise ship comparison · Updated January 2026
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across 5 categories
Size
Based on gross tonnage and length
Capacity
Based on passengers and crew
Modernity
Based on year built
Service
Based on passenger-to-crew ratio (lower is better)
Spaciousness
Based on gross tonnage per passenger (higher is better)
National Geographic Explorer
Ocean Adventurer
Gross Tonnage
National Geographic Explorer
6,471 GT
Ocean Adventurer
4,376 GT
Length
National Geographic Explorer
108 m
Ocean Adventurer
101 m
Beam
National Geographic Explorer
16 m
Ocean Adventurer
16 m
Passengers
National Geographic Explorer
148
Ocean Adventurer
128
Crew
National Geographic Explorer
85
Ocean Adventurer
86
Decks
National Geographic Explorer
—
Ocean Adventurer
—
Year Built
National Geographic Explorer
1,982
Ocean Adventurer
1,975
Space Ratio
National Geographic Explorer
43.7 GT/pax
Ocean Adventurer
34.2 GT/pax
Passenger:Crew Ratio
National Geographic Explorer
1.74 :1
Ocean Adventurer
1.49 :1
| Specification | National Geographic Explorer | Ocean Adventurer |
|---|---|---|
| Overview | ||
| Cruise Line | Lindblad Expeditions | Quark Expeditions |
| Class | Expedition | Expedition |
| Status | active | active |
| Year Built | 1,982Winner | 1,975 |
| Dimensions | ||
| Gross Tonnage | 6,471 GTWinner | 4,376 GT |
| Length | 108 mWinner | 101 m |
| Beam | 16 m | 16 m |
| Draft | ||
| Capacity | ||
| Passengers | 148Winner | 128 |
| Crew | 85 | 86Winner |
| Key Ratios | ||
| Space Ratio | 43.7 GT/paxWinner | 34.2 GT/pax |
| Passenger:Crew Ratio | 1.74:1 | 1.49:1Winner |
| Build | ||
| Builder | Ulstein Hatlo | P. Wencke & Sohn |
| Flag | Bahamas | Bahamas |
| IMO Number | 9005829 | 8010101 |
National Geographic Explorer
44 GT/pax means plenty of quiet space
1.7:1 passenger-crew ratio means exceptional service
Well-suited for cruise newcomers
Good range of onboard options
Ocean Adventurer
Comfortable atmosphere for two
1.5:1 passenger-crew ratio means exceptional service
Good value for money
Well-suited for cruise newcomers
Free cancellation on most rooms
Bundle & save on your cruise trip
Medical, trip cancellation & luggage cover
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4 m |
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| Decks | — | — |
