3 Best Sights in The South-Central Coasts and Highlands, Vietnam

These egg-shape private bathing capsules each accommodate two to three people, and are a 15-minute taxi ride away from the main tourist area. There are larger tubs for groups and a range of hot- and cold-water pools, as well as saunas and steam rooms and also a dining area. The purported youth-bestowing quality of the mud baths may or may not be a gimmick, but it's still worth spending a few hours here for a fun, albeit strange and messy, pampering session.

While the mud baths are the main attraction at I-Resort, there are also warm mineral pools, mineral water spas, waterfalls, and a kids' play area, all set within landscaped grounds 20 minutes northwest of the main tourist area of Nha Trang. Some of the massages and mud bath package deals offer good value and include a "light bite" that's really a full meal.

If your idea of relaxation involves soaking in a mineral mud bath, head to Thap Ba Hot Spring Center, on the northern outskirts of Nha Trang, 7 km (4½ miles) from the tourist area. In addition to mud baths there are hot mineral pools and a mineral swimming pool. You can choose to soak solo, with a partner, or in a group.