Lake Sfânta Ana, located in the Ciomatului Mare crater, is the only lake of volcanic origin in Central and Eastern Europe, being also the main tourist attraction in the Szeklerland. This picturesque lake is surrounded by high walls of the volcanic cone of Mount Ciomat, offering several notable higher peaks such as Ciomatul Mare (1301m), Ciomatul Mic (1238m), Tata hill (1174m) and Piscul Pietros (1125 m).
Distinctive in that it is found at an altitude of 946 meters, the lake stands out for its impressive diameter of 1737 meters and a maximum depth of 7 meters. It is fed by 13 temporary streams which, following the rains, transport water and gravel into the lake. Water sources include both precipitation and snowmelt.
On the northern and western edges of the lake, a sedimentation process takes place, and the bottom of the lake is progressively covered by a layer of silt. The depth of the lake now measures 6.5 meters at its deepest point. On clear days, especially in the absence of wind, gas bubbles are visible rising from the bottom of the lake, being, in fact, traces of post-volcanic activity.
Also, in the northern and northeastern part of the lake, you can see a layer of floating peat with a thickness of about one meter.
Sursa: visitharghita.com
