The closest activity to Taxiarchis (Mainland Halkidiki) is Wine Tasting, 20.3 km away. Ordered by distance from Taxiarchis. Info, prices, booking.
20.3 km from Taxiarchis

21.3 km from Taxiarchis
29.1 km from Taxiarchis
29.1 km from Taxiarchis

29.2 km from Taxiarchis

29.9 km from Taxiarchis

31.0 km from Taxiarchis

Wine Tasting, just 20.3 km from Taxiarchis. The rest are listed below, ordered by distance.
None sit within 15 km of Taxiarchis itself, but Mainland Halkidiki has 7 activities in total — listed below, closest first.
Based on user reviews: Folklore Museum of Nea Moudania (★4.8), Fishing Boats & Tools Museum (★4.7), Wine Tasting (★4.6).
The activities are spread out around Taxiarchis. A car makes exploring much easier — local buses and taxis are limited outside peak season.
Taxiarchis 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.