Due to volcanic activity there are more than 2000 mineral springs in the region, the water from some of which is bottled and shipped all over the world. In Jigodin, Băile Tuşnad, Sântimbru Băi, and Harghita Băi there are fumaroles, which have therapeutic properties due to their carbon dioxide and brimstone emissions. In order to exploit the numerous natural resources like mineral water, salt mines, fumaroles, and fresh air, the county has a chain of internationally recognized resorts like, Tuşnad, Borsec, and Praid.