On the Land of Fire

Traditionally, buy some food for the day, so as not to waste time on lunches and enjoy nature to the maximum.

You should definitely visit the Mammoth Hot Springs, as they differ from other thermal areas. This is largely due to limestone, which is a relatively soft rock type, which allows travertine formations to grow much faster than others.
In Yellowstone, every year rain and melted snow seep into the ground. Water is heated up quickly by the magmatic formations heat. After moving through the underground "water supply system", hot water rises through small cracks and interacts with gases. When part of the carbon dioxide is dissolved in hot water, a weak carbon dioxide solution is formed. This solution interacts with limestone. Under the influence of air, a part of carbon dioxide is released from the solution, and limestone is converted into a solid mineral called travertine.