Sithonia , also known as
Longos, is a peninsula located south of the central part of
Chalkidiki which is also in the south-central part of the Chalkidiki peninsula. The
Kassandra Peninsula lies to the west and the
Mount Athos peninsula at the east. Sithonia is also a municipality, covering the Sithonia peninsula. The seat of the municipality is the town
Nikiti.