The definition of a "luxury cruise" is often debated, with some equating it to the most expensive suites on large vessels. However, a more widely accepted view, held by cruise critics and experienced travelers, defines luxury as an experience characterized by exclusivity and a high staff-to-guest ratio, rather than sheer size or cost.

Large cruise ships, while offering expansive and costly accommodations like the Iconic Suite on Celebrity Edge or the Ultimate Family Townhouse on Royal Caribbean's Icon of the Seas, host thousands of passengers. In contrast, smaller, luxury-focused ships typically accommodate between 200 and 600 guests. This smaller scale fosters a more intimate, village-like atmosphere and ensures ample personal space, including readily available seating by pools and lounges, contributing to a sense of calm.

Seabourn, a cruise line with five ships including two expedition vessels, exemplifies this philosophy. The line emphasizes an "unfussed luxury" where most expenses are included. This includes generous offerings of Champagne and caviar, with the fleet serving approximately 145,000 bottles of Champagne annually.

The "Yachtsman's Caribbean" itinerary aboard the Seabourn Ovation, for instance, sails from St. Maarten to Barbados, visiting smaller, scenic locations rather than major tourist hubs. This approach allows the ship to anchor in picturesque bays, offering guests views of hillside villages and natural landscapes. Accommodations on the 600-passenger Ovation are exclusively suites with balconies, eliminating interior rooms and contributing to a feeling of spaciousness.

Dining is a key component of the luxury experience, with options ranging from a poolside grill and a sushi restaurant to a Mediterranean eatery. In-suite dining is also available 24 hours a day. Onboard amenities include a casino, spa, theater, and various activities, such as daily trivia.

The social atmosphere on smaller luxury ships is often highlighted by guests. Many find the personable environment conducive to meeting new people and forming connections, a contrast to the anonymity sometimes found on larger vessels. This was a sentiment echoed by passengers who had previously been hesitant about cruising.

The cruise ship Seabourn Ovation anchored near a lush green island with houses.

Beyond the Caribbean, Seabourn offers routes to less conventional destinations, including the Kimberley coastline in Australia and Iceland. The line also offers extended itineraries, such as a 94-day "Pole-to-Pole: Grand Expedition" and a 120-day world cruise, catering to guests seeking longer voyages. The company focuses on "attention to detail" and getting to know individual guest preferences to enhance the small-ship experience.