- Luxury cruise ships: 500 - 2,000 passengers
- Mid-size cruise ships: 2,000 - 3,000 passengers
- Large cruise ships: 3,000 - 6,000 passengers
- Mega cruise ships (also known as "floating cities"): Over 6,000 passengers
Some of the largest cruise ships in the world, such as Royal Caribbean's "Wonder of the Seas" and MSC Cruises' "MSC Meraviglia," have passenger capacities exceeding 5,000. These massive vessels offer a wide range of amenities and facilities, including multiple restaurants, bars, lounges, swimming pools, spa and fitness centers, entertainment venues, kids' clubs, and more.
Expedition ships, on the other hand, are designed for small groups of passengers who are focused on exploring remote areas and engaging in educational experiences. These ships typically have capacities ranging from 50 to 200 passengers and provide a more intimate and adventurous travel experience compared to larger cruise ships.
It's important to note that the passenger capacity of an ocean liner can also vary depending on the ship's itinerary, as well as any applicable regulations or restrictions related to safety and operational factors. When choosing an ocean liner cruise, passengers should consider their personal preferences, the size and amenities they desire, and their budget, among other factors, to ensure they have a comfortable and enjoyable journey.