The largest city and seat of the Municipality of Sintiki is Sidirokastro, which is located 25 kilometers from the city of Serres and 19 kilometers from the border checkpoint of Promachonas at the Greek border with Bulgaria. Sidirokastro is a neat lowland city with many attractions, just a short distance from Lake Kerkini and Mount Beles. It has 5200 inhabitants.
City/Village // City
|Altitude (in meters)||:||111|
|Type of Place||:||Scenic|
|Administrative Center of||:||Municipality|