Jamno (lake)

Jamno is a lake in northern Poland (in West Pomeranian Voivodeship), close to the Baltic Sea. It is divided from the sea by a spit, on which lie the resorts of Mielno and Unieście.
Jamno covers an area of over ; its maximum length is and its maximum breadth is . Its greatest depth is . The lake is popularly used for sailing.
An examination of this lake from 2007 shows it is a brackish coastal lagoon that at that time was heavily polluted by sewage from the nearby city of Koszalin.