E4: Ada – Zrenjanin

E4: Ada – Zrenjanin is a 129.2 km International Hiking hiking trail covering an interesting stretch of countryside.

This 129.2 km route is a major undertaking — excellent fitness, reliable navigation, and multi-day planning are required. End-to-end time is roughly 28 hours and 43 minutes.

Point-to-point in layout, this trail takes you from A to B across the landscape. Consider your return logistics before heading out. Follow the E4-2 waymarkers throughout to stay on the official trail line.

This trail belongs to the International Walking Network (IWN) — one of Europe's most ambitious cross-border hiking networks. Waymarking and maintenance follow international standards throughout.