"A bayside resort tucked inside one of Vietnam’s largest nature reserves that centers wellness around an expansive spa complex. In addition to an existing 118,000-square-foot spa, two new private Spa Houses—the Thuy Lien (Lotus) and the An Son (Peaceful Mountain)—offer guests daily massages and treatments plus exclusive access to private pools, steam rooms, and relaxation decks. Multiday programs focus on stress reduction, weight management, and mindfulness, with each Spa House accommodating up to four guests; packages start from about $2,100." - Jennifer Flowers