Which is harder, E4: Vratna – Sikole or ST401 Belgrade - Avala?

E4: Vratna – Sikole is the tougher of the two on distance and elevation (48 mi (77 km), 3,734 ft (1,138 m) of climbing). See the full side-by-side breakdown.

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E4: Vratna – Sikole vs ST401 Belgrade - Avala

A side-by-side look at distance, elevation, difficulty and the best time to hike each — so you can pick the right route.

Units

	E4: Vratna – Sikole	ST401 Belgrade - Avala
Distance	48 mi77 km	12.0 mi20 km
Elevation gain	3,734 ft1,138 m	1,388 ft423 m
Typical duration	4 days	1 day
Difficulty	—	Expert
Route type	Point-to-point	Point-to-point
Network	International	International
Country	Serbia	Serbia
Best time to hike	Best months: April, October	Best months: February, April, October
	map Route & GPX	map Route & GPX

E4: Vratna – Sikole vs ST401 Belgrade - Avala: which should you hike?

At 48 mi77 km, E4: Vratna – Sikole is the longer route — roughly 36 mi58 km more than ST401 Belgrade - Avala (12.0 mi20 km). If you want the bigger challenge or a longer trip, that's the one; for a shorter or first multi-day hike, ST401 Belgrade - Avala is the gentler pick. Check the elevation and best-season rows above, then open each route for the full guide and a free GPX download.

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