Halkidiki, Sithonia, Tripotamos. A FIRST LINE VILLA ON A GATED COMMUNITY. Calming silence, fine golden sand, crystal clear water, and a moderate entrance with long shallow waters are just a few reasons to relax on Sithonia in the cozy place of Tripotamos, which is 3 km from the lively, no less picturesque village of Neos Marmaras.