The closest beach to Olympiada (Mainland Halkidiki) is Stratoni Beach, 8.8 km away. Ordered by distance from Olympiada. Photos, map, reviews.
8.8 km from Olympiada

11.0 km from Olympiada

29.3 km from Olympiada

29.4 km from Olympiada

30.2 km from Olympiada

30.6 km from Olympiada

31.0 km from Olympiada

31.5 km from Olympiada

31.7 km from Olympiada

32.0 km from Olympiada

32.2 km from Olympiada

32.6 km from Olympiada

Stratoni Beach, just 8.8 km from Olympiada. The rest are listed below, ordered by distance.
Within 15 km of Olympiada there are 2 beaches, with 21 across Mainland Halkidiki in total.
Based on user reviews: Karagatsia (★3.8), Kalopigado (★3.8), Agios Georgios (★3.8).
The beaches are spread out around Olympiada. A car makes exploring much easier — local buses and taxis are limited outside peak season.
Olympiada is on the Mainland Halkidiki side of Halkidiki, in northern Greece. The nearest airport is Thessaloniki (SKG); from there a car is the most convenient way to reach the Mainland Halkidiki villages.