Signature highlights
Signature features include the adults-only Sanctuary, Movies Under the Stars, the Lotus Spa and Fitness Center, Izumi Japanese Bath, Piazza, casino and multiple lounges. ([princess.com](https://www.princess.com/find/details/features/DI.html))
Dining
Dining includes five main dining rooms, Horizon Court buffet, casual poolside venues, Prego Pizzeria, Trident Grill, Kai Sushi and specialty restaurants including Sabatini’s Italian Trattoria. ([princess.com](https://www.princess.com/find/details/features/DI.html))
Entertainment
Entertainment venues include the Princess Theater, Movies Under the Stars, Explorers Lounge, Club Fusion, casino and nightclub-style spaces, supported by live shows and other onboard programming. ([princess.com](https://www.princess.com/find/details/features/DI.html))
Staterooms & suites
The ship offers suites, mini-suites, balcony cabins, oceanview rooms and interior cabins, with 1,337 guest cabins listed by Princess. ([princess.com](https://www.princess.com/ships-and-experience/ships/di-diamond-princess?msockid=26d86038cba369e5214976d3ca506805))
For families
Family facilities include dedicated children’s and teen centers, youth programming, pools, sports areas and casual dining options suitable for families. ([princess.com](https://www.princess.com/en-int/news/backgrounders-and-fact-sheets/diamond-princess-fact-sheet))
Pools, spa & wellness
Wellness facilities include the Lotus Spa and Fitness Center, The Sanctuary, pools, whirlpools, sports areas and the Izumi Japanese Bath. ([princess.com](https://www.princess.com/en-int/news/backgrounders-and-fact-sheets/diamond-princess-fact-sheet))
Accessibility
Princess lists a medical center and guest-service facilities onboard; Japan departures also provide Japanese-language support at major guest-facing services. Specific accessible-cabin details should be confirmed directly with Princess. ([princess.com](https://www.princess.com/en-int/news/backgrounders-and-fact-sheets/diamond-princess-fact-sheet))
Environmental features
Princess describes Diamond Princess as using combined diesel and gas-turbine generation and waste-treatment systems designed to avoid disposal at sea; the company also reported installation of a hull air-lubrication system on the ship in 2017. ([princesscruises.jp](https://www.princesscruises.jp/ships/diamond-princess))