Parenzana Tunnel – View of Grožnjan loop from Gradinje

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Mountain biking trails

Croatia

Istria

Parenzana Tunnel – View of Grožnjan loop from Gradinje

Moderate

riders

Parenzana Tunnel – View of Grožnjan loop from Gradinje

04:15

55.9km

860m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: September 24, 2026

Waypoints

Start point

Parking

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13.6 km

Kornarija

Forest

29.0 km

Parenzana Tunnel Sv. Vid

Highlight • Structure

Unlit. In addition, it is better to pull your head in when driving through.

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29.8 km

Parenzana Tunnel

Highlight • Structure

The tunnel passes Groznjan below. The tunnel lights, which only turn on gradually, are funny.

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30.0 km

View of Grožnjan

Highlight • Viewpoint

The approach to Groznjan is not particularly demanding, the place is very beautiful and the descent over the Parenzana with a view of Groznjan is easy and beautiful.

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32.7 km

View of the Mirna Valley from the Parenzana

Highlight • Viewpoint

A great panorama in the valley of the Mirna

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34.9 km

View of Kostanjica

Highlight • Viewpoint

Great view of Kostanjica

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37.1 km

Završje Tunnels I & II and Viaduct

Highlight (Segment) • Structure

Zavaršje Tunnel II length 28m

Zavaršje Tunnel I length 35 m

Zavaršje viaduct length 62 m, height 20 m

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38.7 km

Antonci Viaduct on the Parenzana Trail

Highlight • Bridge

A wonderful view from the bridge

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41.2 km

Freski Tunnel and Viaduct on the Parenzana Trail

Highlight • Cycleway

Driving on the old railway line, gravel road for MTBs, fantastic views. When driving from Groznjan to the east, the old railway line has a slight gradient. The longer tunnels …

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