Pemandian air panas (aek milas) Sipirok

Being close to the still-active Mount Sibualbuali, Sipirok has many hot springs used as bathing places (aek milas). These baths are found in Parandolok, Parau Sorat, Situmba and Sosopan, among others.

Source: Sipirok, Tapanuli Selatan — Wikipedia · Kabupaten Tapanuli Selatan — Wikipedia