Hot Springs Around the World

Less than a mile from the village of Banjar in northern Bali, this hot spring is a relaxing 98.6 degrees. The hot spring water pours from the mouths of 8 stone-carved naga (mythical, dragon-like creatures) into a rectangular-shaped pool.

Head to Napa Valley for a dip in this mineral pool, one of 4 geothermally heated pools on the grounds of Calistoga Spa Hot Springs hotel in Calistoga, California. Recline in waters ranging from 80 to 104 degrees, while enjoying the surrounding beauty of nearby Mt. St. Helena.

A century ago, miners in southwestern Colorado soothed aching bones in these natural hot tubs. Today, the tradition continues: Choose from among 5 different pools, the hottest of which reaches 106 degrees. The wine-red waters are rich in iron and magnesium, with a dash of lithium.

Take a dip in the most famous natural springs in southern Tuscany. Consisting of several natural pools of warm thermal water, the Cascate del Mulino are open to the public — and free — throughout the year. At a warm 99.5 degrees year-round, the waters contain properties that have been known to help skin, digestive and circulatory ailments since Roman times.