Pomorie Lake is the symbol of Pomorie and it is associated with the balneotherapy with mud, lye and rapa (lake water), with the extraction of salt, the production of cosmetics and last but not least - as a valuable habitat for more than 60 species of endangered birds. The lagoon lies on the second largest bird migration route, the Via Pontica, and every year thousands of storks, pelicans, geese and birds of prey pass over the lake on their way from Europe to Africa. More than 270 species of feathered birds can be seen migrating, wintering, or nesting there at different times of the year. Some of them are rare and globally threatened species such as the Thorn-billed Grebe, Red-breasted Goose, Dalmatian Pelican, White-eyed Grebe, Song Swan, Terns, etc.