Varna

Varna is the third-largest city in Bulgaria and the largest city and seaside resort on the Bulgarian Black Sea Coast and in the Northern Bulgaria region. Situated strategically in the Gulf of Varna, the city has been a major economic, social, and cultural centre for almost three millennia. Historically known as Odessos, Varna developed from a Thracian seaside settlement into a major seaport on the Black Sea.Wikipedia

Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. It is situated on the eastern portion of the Balkans directly south of the Danube river and west of the Black Sea. Bulgaria is bordered by Greece and Turkey to the south, Serbia and North Macedonia to the west, and Romania across the Danube river to the north. It covers a territory of 110,994 square kilometres (42,855 sq mi) and is the tenth largest within the European Union and the sixteenth-largest country in Europe by area.Wikipedia