The latest round took place in Sofia, Blagoevgrad, Plovdiv, Sliven and London on April 26, in which participants also demanded protection of natural heritage in the Black Sea area. 
Maandamano ya hivi karibuni yalifanyika huko Sofia, Blagoevgrad, Plovdiv, Sliven na London mapema Aprili 26, ambapo waandamanaji walitoa pia wito wa kulindwa kwa urithi.wa asili wa eneo la Bahari Nyeusi.