San Silvestre Zaragoza 2026-12-31 5K Zaragoza (Coso) / Spain Visit Event Website → About This Event Location Zaragoza (Coso) Country Spain Date 2026-12-31 Distances 5K Why This Event 20th edition with 4,000+ runners supporting Parkinson Aragón and Alzheimer's Family Association, 18:00 start. More Runs in Spain View all runs in Spain