Seven Seas Mariner - Nights of Samba & Tango: Rio to Buenos Aires

Seven Seas Mariner is Regent's intimate, original all-suite, all-balcony ship - the vessel that helped define the modern ultra-luxury all-inclusive formula at its 2001 launch. At around 700 guests it's noticeably smaller and more personal than the Explorer-class ships, with a refined, unhurried, quiet atmosphere geared to an older, well-traveled clientele. The headline draw is all-inclusive value - excursions, all beverages, gratuities, Wi-Fi, and often airfare - paired with service rated among the best at sea.