Due to the salt pan, the sulphurous springs on the slopes of the Slănic valley and the seven salt lakes, formed on the old salt mines, a balneo-tourism activity has developed, documented in 1853, which contributed to the declaration of the Slănic Prahova locality as a tourist resort of national interest.

The Unirea Mine (Salina Slănic Prahova), located at a depth of 208m, on an area of 53,000m2, was opened to visitors after 1970. The tourist circuit covers a route that allows highlighting some spatial elements of tourist interest in the internal structure of the massif salt, represented by folds that develop over tens of meters, marked by alternations of variously colored bands, with shades of gray and white, various mineralogical characteristics (structure, texture, crystallization mode) and by the special purity of the salt.