AmaWaterways' 124-passenger AmaDara launched in 2015 and cruises on the Mekong River through the heart of Cambodia and Vietnam. It is similar to sister AmaLotus, with spacious staterooms, a lounge with river views, and an expansive sun deck with a small pool and bar. The major differences are that AmaDara has a second restaurant, and even the standard cabins have true balconies. The ship sails seven-night itineraries that can be combined with seven-night land stays. One can’t-miss land experience: sunrise at Angkor Wat in Siem Reap, Cambodia.