A natural spring is a pure and crystal-clear source of fresh water that emerges from the ground. There are many synonyms that can be used to describe this natural wonder. Some of these synonyms include 'mineral spring', 'spa', 'thermal spring', 'hot spring', 'cold spring', 'spring water', and 'artesian well'. A mineral spring is a spring that naturally contains minerals such as calcium and magnesium. A spa is a natural spring that has been developed and is used for health treatments. Thermal springs are naturally occurring hot springs that emerge from the ground, while cold springs are naturally occurring springs that are cool to the touch. Spring water refers to water that comes from a natural spring, while an artesian well is a well that taps into a pressurized aquifer and brings up spring water. Regardless of the synonym used, a natural spring is a breathtaking and refreshing natural wonder.