Greek fishing settlement (19th century – 1927)
Until 1934 the village bore the Greek name Galazaki ('little blue'), also known in its Turkish form as Kalandzha (Kalandzoy). By order of the Minister of the Interior in 1934, the village was renamed Sinyomorets (and from 1966 Sinemorets), as part of the wholesale renaming of 1,875 settlements in Bulgaria. Until the Balkan Wars and the Mollov–Kafandaris agreement of 1927, under which the Greek population resettled to Greece, the village was almost entirely Greek.
Border zone (1944 – 1989)
After 1927, Bulgarian refugees from Eastern Thrace settled in the village. During the socialist period, Sinemorets fell within a strictly controlled border zone — access was possible only with a permit. This isolation preserved the Veleka estuary and the surrounding beaches from the mass resort construction of the 1970s and 1980s.
Nature destination (1989 — today)
After 1989 the border was opened, and Sinemorets quickly became a favourite with nature lovers. In 1995 the entire surroundings became part of the Strandzha Nature Park. In 2008 Stefan Komandarev's film 'The World is Big and Salvation Lurks Around the Corner' popularised the village, and in the years that followed family hotels, eco-trails and fish restaurants sprang up — while preserving its character as a protected area.