Sulfur springs are natural hot springs that contain high concentrations of sulfur compounds. These springs are often found in volcanic regions and are known for their distinctive smell, which is similar to rotten eggs. The sulfur in the water can create unique mineral formations and is believed to have therapeutic properties. The water in sulfur springs can vary in temperature, sometimes reaching boiling point. Many people visit these springs for relaxation and potential health benefits, as the minerals are thought to help with skin conditions and joint pain. Popular locations for sulfur springs include Yellowstone National Park and Bath, England.