aerial drone view of a volcanic crater lake at winter. flying above sfanta ana lake, szent anna lake, szeklerland, transylvania,

sfanta ana szent anna szekerland szekelyfold winter snow transylvania romania nature crater lake volcanic aerial volcano caldera mountain view water natural landscapes travel scenic blue geology park landmark mount volcanism destination green altitude geothermal attraction deep lagoon scenery turquoise liquid outdoor wild wilderness big high forest environment picturesque amazing