Regent Seven Seas Cruises have long offered some of the best suites at sea, and the all-inclusive 490-passenger Seven Seas Navigator is no exception. Even the lowest category comes with walk-in closets and marble bathrooms with a full-size tub. When you're not in your stateroom, you'll find there are lots of activities on board, from an outpost of the famed Canyon Ranch Spa to a classy casino, three lounges, nightly musical performances, and multiple restaurants.