Hot Springs
Hot springs are spots of water that are heated by geothermal heat, heat from within the earth. Most hot springs are on the ring of fire. Some hot springs are so hot people have boiled themselves to death. Hot springs are believed to have certain healing powers because of the heat and minerals in them. It is said they help rheumatism, skin problems, sore muscles and ease stress.
Here are some pictures I found of hot springs I'd like to visit click on picture for enlargement.
Links about and to some hot springs.
Geysers are hot springs that shoot water and steam from the earth, not wise to sit on them.