Cruise lines are reintroducing a concept reminiscent of historical class divisions with the development of exclusive 'ship-within-a-ship' enclaves. These premium sections offer passengers a more personalized and luxurious experience, complete with private pools, dedicated lounges, restaurants, and butler service, marking a return to tiered accommodations not seen since the mid-19th century.

Norwegian Cruise Line's 'The Haven' features an infinity pool, outdoor relaxation areas, a sauna, and a glass-walled cold room on its latest Prima Plus-class ships. Suites within The Haven provide 360-degree sea views and butler service. For enhanced experiences, a concierge can assist with specialty dining, securing front-row theater seats, and booking excursions. A seven-day cruise on Norwegian Luna to the Caribbean starts from approximately £3,190 per person, with entry-level pricing at £605 per person.

Cunard Line's Queen Anne offers 'Grill Suites' that grant access to the Grills Lounge and a private Grills Terrace, equipped with a sundeck and whirlpool. Guests also receive butler service, a pillow menu, and premium toiletries. A notable perk is a butler opening a bottle of Laurent-Perrier Champagne upon arrival. A seven-night 'Norwegian Fjords' cruise starts at £5,018 per person for Princess Grill Suites, while basic fares begin at £829.

On Cunard's newest Queen Anne ship, guests can get access to the Grills Lounge and private Grills Terrace, where there is a butler service, pillow menu and toiletries from Penhaligon

Royal Caribbean's 'The Grove' on the 7,600-passenger Legend of the Seas is a four-deck 'Suite Neighborhood'. It includes a two-story sundeck, pool, hot tub, and VIP dining options. The Suite Lounge offers views of the AquaDome, where high-diving shows are performed. A nine-night 'Western Mediterranean' cruise is priced from £3,399 per person, including flights and a hotel stay, with entry-level fares at £1,729.

Celebrity Cruises provides 'The Retreat' for its top-paying guests on Edge Series ships. This includes butler service, a dedicated specialist for shore excursions, and access to a private sundeck and lounge. The largest 'Iconic Suites' are situated above the captain's bridge, offering panoramic views. A key perk is dining at Luminae, featuring dishes by chef Daniel Boulud. A seven-night 'Greek Isles & Malta' cruise on Celebrity Xcel starts at £3,972 per person, with basic fares at £1,415.

Top-paying guests on Edge Series ships get a butler and a specialist to help plan tours ashore and access to a private sundeck and lounge (pictured)

MSC Cruises' 'MSC Yacht Club' offers a private lounge, bar, dining room, sun deck, and pool. Benefits extend to priority embarkation and disembarkation, butler service, and a 24-hour concierge. The upcoming MSC World Asia, launching in December, will feature a two-deck, two-bedroom Royal Duplex Suite with a balcony whirlpool. Access to the MSC Aurea Spa's thermal suite is a top perk. A seven-night cruise on MSC World Asia departs in January 2028 from £1,824 per person, with entry-level pricing at £669.

Launching in December this year, MSC World Asia will have a two-deck, two-bedroom Royal Duplex Suite on board, with a whirlpool bath on the balcony

Virgin Voyages' 'RockStar' and 'Mega RockStar Quarters' provide access to Richard's Rooftop, an exclusive deck, along with complimentary drinks, a stocked in-room bar, free Wi-Fi, and priority laundry service. Complimentary parking or private transfers are a top perk. A seven-night 'Alaska: Inside Passage & Glacial Fjords' cruise starts from £6,764 per person for RockStar Quarters, with entry-level fares at £909.

The bonuses available to top-class passengers of Virgin Voyages include access to exclusive deck, Richard's Rooftop, as well as a bottomless in-room bar, free Wi-Fi and a priority laundry service

Holland America Line's 'Pinnacle' suites include verandas with hot tubs, a private club, concierge service, early check-in, complimentary laundry, and Wi-Fi. A premium feature is the Duxiana king-size bed. A seven-day cruise on Koningsdam from Vancouver starts at £6,909 per person, with entry-level fares at £1,171.

Disney Cruise Line's 'Concierge Suites' offer priority access for shore tours, adult-exclusive dining reservations, spa treatments, and nursery bookings. The Concierge team is available to assist guests up to 130 days before sailing. Guests have access to a dedicated Concierge Lounge and a private sundeck. A three-night cruise from Southampton to Zeebrugge in a Concierge Royal Suite starts from £5,853, with entry-level fares at £1,117.

Cruise lines have increasingly been introducing exclusive sections for the highest paying customers. Here's our guide to this ultra-exclusive world

These exclusive sections, often referred to as 'neighborhoods' or 'suites', provide a sanctuary within the larger vessel, catering to passengers seeking elevated service and amenities. The trend reflects a broader industry movement towards segmented offerings to appeal to diverse customer preferences and price points.