Crete Marathon in Chania
Greece's only officially recognized Green Marathon, held each April in Chania with a full 42.195-kilometer marathon plus 10km, 5km and 2.5km distances, its route shifting in recent years toward the city's Venetian old harbor and waterfront rather than the earlier countryside course through nearby inland villages.
Crete Marathon holds a distinction no other race in Greece claims: it is the country's only officially recognized Green Marathon, a designation tied to environmental measures built into how the event is organized rather than the scenery it passes through.