Waterfall of Tuf

Within each cascade takes place a chemical reaction. Limestone, like sugar or salt, has the property of dissolving in water. Now the water that has just crossed the mountain is loaded with dissolved limestone, invisible. The water suddenly begins to deposit limestone because of the combined effect of the rise in temperature and oxygenation. The foams take advantage of the carbon dioxide released during the chemical reaction. Condemned to see the limestone deposited on them and transform them literally into stone, they grow incessantly. The tuff thus created is a material comparable to cellular concrete (lightweight but resistant) much used for construction locally.