· International
· ST520
Hard
ST520 Smolyan - Polkovnik Serafimovo
📏
15.7 km
Distance
⏱
3h 55min
Est. duration
⛰
Hard
Difficulty
➡
Linear
Route type
Stage in the Sultans Trail, a historic and cultural long-distance hiking route from Vienna to Istanbul.
A 15.7 km full-day trail that rewards walkers with a proper day out. Budget roughly 3 hours and 30 minutes at a steady pace.
This is a point-to-point route, running from one location to another. Plan ahead for return transport, or consider reversing the route on your way back. Look for the ST520 trail markings to stay on the official route.
As an International Walking Network (IWN) route, this trail is part of a network connecting countries across Europe and beyond. Quality standards for surface and signage are consistently high.
Elevation Profile
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Elevation data from SRTM via OpenTopoData (open dataset).
Map
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Waypoints
5 points along the routeA
Start
· Smolyan
B
Finish
· Polkovnik Serafimovo
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Frequently Asked Questions
How far is it to walk ST520 Smolyan - Polkovnik Serafimovo?
ST520 Smolyan - Polkovnik Serafimovo covers a distance of 15.7 km.
How long does it take to walk ST520 Smolyan - Polkovnik Serafimovo?
At an average walking pace, ST520 Smolyan - Polkovnik Serafimovo takes approximately 3h 55min to complete.
Do I need to return the same way on ST520 Smolyan - Polkovnik Serafimovo?
No — ST520 Smolyan - Polkovnik Serafimovo is a one-way trail. It runs from Smolyan to Polkovnik Serafimovo. You will need to arrange return transport or retrace the route.
Where can I begin walking ST520 Smolyan - Polkovnik Serafimovo?
You can begin ST520 Smolyan - Polkovnik Serafimovo at Smolyan.
How difficult is ST520 Smolyan - Polkovnik Serafimovo?
ST520 Smolyan - Polkovnik Serafimovo is a challenging hike that requires a good level of fitness.
Who maintains the ST520 Smolyan - Polkovnik Serafimovo trail?
ST520 Smolyan - Polkovnik Serafimovo is maintained and managed by Sultans Trail Foundation.
Is ST520 Smolyan - Polkovnik Serafimovo part of a larger trail network?
Yes, ST520 Smolyan - Polkovnik Serafimovo is part of the International Walking Network (IWN), connecting this route to a wider network of long-distance hiking trails.