Lake Saint Anne is one of the most attracting sights in the Szeklerland. It is located in one of the twin craters formed at the summit of Mount Csomát - a volcanic cone at the southern extremity of the Hargita volcanic mountain range (the other crater hosts the Mohos peat bog). The lake is situated in the only intact volcanic crater in East-Central Europe. Its surface is about 949-950 m above sea level. The lake is part of the Mohos Nature Reserve.