Actually, the Romans visited us to use the mineral waters from the west part of the country (Baile Herculane or Sangeorz Bai), and Napoleon III used to send his people to bring to him mineral waters from Calimanesti-Caciulata, because he thought that this waters were magical.
The most important health resorts are Baile Felix, Baile Herculane, Calimanesti-Caciulata, Eforie Nord, Sovata, Sangeorz Bai, Vatra Dornei, Covasna, Baile Tusnad, Mangalia etc.
The mineral and thermal springs were valued and "resorts" were established as areas for cure and recreation (Baile Herculane, Geoagiu Bai, Moneasa etc).
During the 1850--1918 period, more tourist locations started to develop in Romania based on their mineral and thermal resources (Slanic Moldova, Baile Tusnad, Govora, Baile Herculane, etc).
Out of the 70 existing spas only 25 are classified as of national interest, and just some of these attract a few foreign tourists: Baile Felix, Baile Herculane, Calimanesti-Caciulata, Covasna, Bale Tusnad, Slanic Moldova, Vatra Dornei, Eforie, Mangalia (mdrt.ro).
In the Carpathian Mountains (in the depressions), the majority of the spas are in association with the "moffetic aureola" predominantly in the Eastern (Vatra Dornei, Sangeorz Bai, Baile Tusnad, Slanic Moldova, Covasna) and the Western Carpathians (Baile Herculane, Geoagiu Bai, Moneasa, Vata de Jos).
At the request of the Ministry of Regional Development and Tourism (MDRT), the French company Detente Consultants (2009) developed a research program targeting 15 main Romanian spas (Mangalia, Eforie Nord, Covasna, Slanic Moldova, Vatra Dornei, Borsec, Baile Herculane, Buzias, Sovata, Bazna, Ocna Sibiului, Baile Felix, Baile Tusnad, Calimanesti and Govora).
The number of tickets offered each year is always short of demand especially considering the most requested resorts: Baile Tusnad, Slanic Prahova, Slanic Moldova, Targu Ocna, Sinaia, Sangeorz-Bai, Sarata Monteoru, Pucioasa, Eforie Sud, Eforie Nord, Techirghiol, Neptun, Olanesti, Lacu Sarat, Amara, Baile Herculane, Buzias, Govora, Baile Felix, CalimanestiCaciulata, Vatra Dornei, Tusnad si Sovata (www.cnpas.ro.).