The Coronini commune is located on the foothills of the Southern Carpathians, where these meet the Danube, and in proximity to the Clisura Dunării and Iron Gates areas. Facing Serbia on the right bank of the Danube, it is also close to a canyon formed by the Alibeg River. The Sfânta Elena area is located on a karstic plateau, which groups sinkholes and limestone pavements, features also present in neighboring areas (Berzasca, the Mudavița Seacă Valley, etc.). The area has also been described as fault plain, part of the Banat Mountains graben (itself known as Coroniniului or Lászlóvára). Coronini is located near a stone formation known as Babacaia (also Babakái or Babocaise), and close to the hills Cralievăț, Cârșia Văradului, and Vuiții. It also houses caves such as Gaura cu muscă, once famous as the breeding ground of Simulium colombaschense, an endemic black fly species. Another such feature is Gaura cu muzică, known for its natural acoustics.