View of Grožnjan – Kostanjica Tunnel (Parenzana) loop from Portorož / Portorose

Italy

Friuli Venezia Giulia

Obalno-kraška

Piran

View of Grožnjan – Kostanjica Tunnel (Parenzana) loop from Portorož / Portorose

Hard

riders

View of Grožnjan – Kostanjica Tunnel (Parenzana) loop from Portorož / Portorose

06:01

112km

860m

Gravel riding

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: September 10, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Krajinski park Sečoveljske soline / Parco naturale delle saline di Sicciole

Waypoints

Start point

Bus stop

Get Directions

12.1 km

Parenzana Rail Trail

Highlight • Cycleway

The Parenzana was a 123.1 km long narrow-gauge railway line that connected 33 places in Istria from Triests to Poreč. Today it is a cycle path that leads through wonderful …

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31.7 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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34.4 km

View of the Mirna Valley from the Parenzana

Highlight • Viewpoint

A great panorama in the valley of the Mirna

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35.7 km

Kostanjica Tunnel (Parenzana)

Highlight • Structure

88 meters - Unlit

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38.7 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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40.4 km

Antonci Viaduct on the Parenzana Trail

Highlight • Bridge

A wonderful view from the bridge

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74.4 km

Park Janeza Ziherla

Forest

88.2 km

Seafront Cycle Path

Highlight (Segment) • Cycleway

With a service station at the end of the newly created bike path.

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89.6 km

Park Zlatorog

Forest

92.6 km

Ruins

102 km

Viewpoint

106 km

Piran, Slovenia's most beautiful coastal town, owes its development to its traditional salt pans, where high-quality salt is still harvested today. The town impresses with its medieval ring wall, church, and numerous cultural attractions.

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112 km

End point

Bus stop

Way Types & Surfaces

Way Types

58.6 km

17.8 km

15.7 km

11.5 km

5.51 km

2.92 km

< 100 m

Surfaces

45.1 km

43.6 km

19.1 km

3.52 km

616 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (300 m)

Lowest point (0 m)

Weather

Saturday 24 October

16°C

6°C

0 %

Additional weather tips

Max wind speed: 10.0 km/h

to get more detailed weather forecasts along your route

Comments

October 17, 2024,Giovedì con Paolo.

The tour done today follows for the first part a piece of the Parenzana cycle path towards Trieste, then turns and goes down towards Umag. Then along the coast to Cittanova. Once outside, you turn left following for almost 30 km a very beautiful dirt road and the very slight climb, almost imperceptible. Very nice tour, especially the second part. …

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