777 Deer Springs Rd., San Marcos
We’ve heard great things about this recently revamped spa, which comes complete with onsite Japanese gardens: If possible, you'll want to check-in for a full week, and accordingly, a full reset, thanks to a daily menu of exercise and spa treatments. Styled after a Japanese “ryokan” or inn, the rooms here all resemble traditional Japanese houses—with an impressive collection of art and antiques from the 18th century to match. The decorations are simple, with sliding doors, dark wood, and Asian-influenced accents. While weight loss isn’t necessarily the goal of a stay, bring running shoes, as there’s a packed schedule of hikes, yoga, and fitness classes to choose from. The Golden Door is meant to be place for detoxing both mind and body, and the food is accordingly local, organic, and healthy—so much so, that you may even spend time in the vegetable garden picking your own greens.