On Norwegian Cruise Line (NCL), whether The Haven (the exclusive "ship-within-a-ship" luxury enclave) includes access to the Mandara Spa Thermal Suite depends on the specific ship and cabin category. On newer Prima-class ships (like the Prima and Viva), Thermal Suite access is not automatically included for standard Haven suites and must be purchased as an add-on or "Diamond" loyalty perk. However, if you book a Haven Spa Suite, the Thermal Suite access is included in your fare. On older Breakaway and Breakaway-Plus class ships, Haven guests typically have their own private "Haven Courtyard" which features a pool and hot tubs, but the full-service Thermal Suite downstairs remains a separate charge unless you are in a Spa-specific category. It is a common misconception among 2026 cruisers that "all-inclusive luxury" includes the spa; while you get a private lounge, restaurant, and butler, the heated loungers and salt rooms usually require a dedicated Spa Suite booking or an additional weekly pass.