The closest beach to Pyrgadikia (Sithonia) is Kambos Beach (Pyrgadikia), just 1.9 km away. Within 15 km there are 13 beaches; below are the 12 closest to Pyrgadikia, ordered by distance. Photos, map, reviews.
1.9 km from Pyrgadikia

5.3 km from Pyrgadikia

6.5 km from Pyrgadikia

7.5 km from Pyrgadikia

9.4 km from Pyrgadikia

10.3 km from Pyrgadikia

11.2 km from Pyrgadikia

11.7 km from Pyrgadikia

11.8 km from Pyrgadikia

12.3 km from Pyrgadikia

13.7 km from Pyrgadikia

14.7 km from Pyrgadikia

Kambos Beach (Pyrgadikia), just 1.9 km from Pyrgadikia. The rest are listed below, ordered by distance.
Within 15 km of Pyrgadikia there are 13 beaches, with 69 across Sithonia in total.
Based on user reviews: Kambos Beach (Pyrgadikia) (★3.8), Salonikiou Beach (★3.8), Elaiona Beach (★3.8).
The beaches are spread out around Pyrgadikia. A car makes exploring much easier — local buses and taxis are limited outside peak season.
Pyrgadikia is on the Sithonia side of Halkidiki, in northern Greece. The nearest airport is Thessaloniki (SKG); from there a car is the most convenient way to reach the Sithonia villages.