Hot springs are natural pools of water that are heated by geothermal activity beneath the Earth's surface. This heat can come from volcanic activity or the decay of radioactive materials in the Earth's crust. The water in hot springs is often rich in minerals, which can provide therapeutic benefits and attract visitors seeking relaxation and healing. Many hot springs are found in areas with volcanic activity, such as Iceland and Japan. These locations often develop into popular tourist destinations, where people can enjoy soaking in the warm waters while surrounded by beautiful landscapes. Hot springs can vary in temperature, size, and mineral content, making each one a unique experience.