The village of Kosti is situated Bourgas region (municipality Tsarevo) in the coastal area, about 10 km away from the beach. It is just 25 km away from the town of Tsarevo and 96km from Burgas city and the International Airport. Until the Balkan War, Kosti has mostly been inhabited by Greeks – fire dancers, who later on emigrated. After 1913 Bulgarian immigrants from Eastern Thrace settled in the village. Original Greek houses have been preserved in Kosti. Around the village of Kosti is Bulgaria`s oldest reserve - Silikosia, unique for the abundance of the Strandzhanska Zelenika, a splendid type of rhododendron, a protected plant that in Bulgaria can only be found in Strandzha and is considered a symbol of the mountain.